tam.wle: Weighted Likelihood Estimation and Maximum Likelihood...

Description Usage Arguments Value References See Also Examples

View source: R/tam.wle.R

Description

Compute the weighted likelihood estimator (Warm, 1989) for objects of classes tam, tam.mml and tam.jml, respectively.

Usage

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tam.wle(tamobj, ...)

tam.mml.wle( tamobj, score.resp=NULL, WLE=TRUE, adj=.3, Msteps=20,
       convM=.0001, progress=TRUE,    output.prob=FALSE )

tam.mml.wle2(tamobj, score.resp=NULL, WLE=TRUE, adj=0.3, Msteps=20, convM=1e-04,
        progress=TRUE, output.prob=FALSE, pid=NULL )

tam_jml_wle(tamobj, resp, resp.ind, A, B, nstud, nitems, maxK, convM,
    PersonScores, theta, xsi, Msteps, WLE=FALSE, theta.fixed=NULL, progress=FALSE,
    output.prob=TRUE, damp=0, version=2)

## S3 method for class 'tam.wle'
summary(object, file=NULL, digits=3, ...)

## S3 method for class 'tam.wle'
print(x, digits=3, ...)

Arguments

tamobj

An object generated by tam.mml or tam.jml. The object can also be a list containing (at least the) inputs AXsi, B and resp and therefore allows WLE estimation without fitting models in TAM.

score.resp

An optional data frame for which WLEs or MLEs should be calculated. In case of the default NULL, resp from tamobj (i.e. tamobj$resp) is chosen. Note that items in score.resp must be the same (and in the same order) as in tamobj$resp.

WLE

A logical indicating whether the weighted likelihood estimate (WLE, WLE=TRUE) or the maximum likelihood estimate (MLE, WLE=FALSE) should be used.

adj

Adjustment in MLE estimation for extreme scores (i.e. all or none items were correctly solved). This argument is not used if WLE=TRUE.

Msteps

Maximum number of iterations

convM

Convergence criterion

progress

Logical indicating whether progress should be displayed.

output.prob

Logical indicating whether evaluated probabilities should be included in the list of outputs.

pid

Optional vector of person identifiers

resp

Data frame with item responses (only for tam.jml.WLE)

resp.ind

Data frame with response indicators (only for tam.jml.WLE)

A

Design matrix A (applies only to tam.jml.WLE)

B

Design matrix B (applies only to tam.jml.WLE)

nstud

Number of persons (applies only to tam.jml.WLE)

nitems

Number of items (applies only to tam.jml.WLE)

maxK

Maximum item score (applies only to tam.jml.WLE)

PersonScores

A vector containing the sufficient statistics for the person parameters (applies only to tam.jml.WLE)

theta

Initial θ estimate (applies only to tam.jml.WLE)

xsi

Parameter vector ξ (applies only to tam.jml.WLE)

theta.fixed

Matrix for fixed person parameters θ. The first column includes the index whereas the second column includes the fixed value.

damp

Numeric value between 0 and 1 indicating amount of dampening increments in θ estimates during iterations

version

Integer with possible values 2 or 3. In case of missing item responses, version=3 will typically be more efficient.

...

Further arguments to be passed

object

Object of class tam.wle

x

Object of class tam.wle

file

Optional file name in which the object summary should be written.

digits

Number of digits for rounding

Value

For tam.wle.mml and tam.wle.mml2, it is a data frame with following columns:

pid

Person identifier

PersonScores

Score of each person

PersonMax

Maximum score of each person

theta

Weighted likelihood estimate (WLE) or MLE

error

Standard error of the WLE or MLE

WLE.rel

WLE reliability (same value for all persons)


For tam.jml.WLE, it is a list with following entries:

theta

Weighted likelihood estimate (WLE) or MLE

errorWLE

Standard error of the WLE or MLE

meanChangeWLE

Mean change between updated and previous ability estimates from last iteration

References

Penfield, R. D., & Bergeron, J. M. (2005). Applying a weighted maximum likelihood latent trait estimator to the generalized partial credit model. Applied Psychological Measurement, 29, 218-233.

Warm, T. A. (1989). Weighted likelihood estimation of ability in item response theory. Psychometrika, 54, 427-450. doi: 10.1007/BF02294627

See Also

See the PP::PP_gpcm function in the PP package for more person parameter estimators for the partial credit model (Penfield & Bergeron, 2005).

See the S3 method IRT.factor.scores.tam.

Examples

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#############################################################################
# EXAMPLE 1: 1PL model, data.sim.rasch
#############################################################################

data(data.sim.rasch)
# estimate Rasch model
mod1 <- TAM::tam.mml(resp=data.sim.rasch)
# WLE estimation
wle1 <- TAM::tam.wle( mod1 )
  ## WLE Reliability=0.894

print(wle1)
summary(wle1)

# scoring for a different dataset containing same items (first 10 persons in sim.rasch)
wle2 <- TAM::tam.wle( mod1, score.resp=data.sim.rasch[1:10,])

#--- WLE estimation without using a TAM object

#* create an input list
input <- list( resp=data.sim.rasch, AXsi=mod1$AXsi, B=mod1$B )
#* estimation
wle2b <- TAM::tam.mml.wle2( input )

## Not run: 
#############################################################################
# EXAMPLE 2: 3-dimensional Rasch model | data.read from sirt package
#############################################################################

data(data.read, package="sirt")
# define Q-matrix
Q <- matrix(0,12,3)
Q[ cbind( 1:12, rep(1:3,each=4) ) ] <- 1
# redefine data: create some missings for first three cases
resp <- data.read
resp[1:2, 5:12] <- NA
resp[3,1:4] <- NA
  ##   > head(resp)
  ##      A1 A2 A3 A4 B1 B2 B3 B4 C1 C2 C3 C4
  ##   2   1  1  1  1 NA NA NA NA NA NA NA NA
  ##   22  1  1  0  0 NA NA NA NA NA NA NA NA
  ##   23 NA NA NA NA  1  0  1  1  1  1  1  1
  ##   41  1  1  1  1  1  1  1  1  1  1  1  1
  ##   43  1  0  0  1  0  0  1  1  1  0  1  0
  ##   63  1  1  0  0  1  0  1  1  1  1  1  1

# estimate 3-dimensional Rasch model
mod <- TAM::tam.mml( resp=resp, Q=Q, control=list(snodes=1000,maxiter=50) )
summary(mod)

# WLE estimates
wmod <- TAM::tam.wle(mod, Msteps=3)
summary(wmod)
  ##   head(round(wmod,2))
  ##      pid N.items PersonScores.Dim01 PersonScores.Dim02 PersonScores.Dim03
  ##   2    1       4                3.7                0.3                0.3
  ##   22   2       4                2.0                0.3                0.3
  ##   23   3       8                0.3                3.0                3.7
  ##   41   4      12                3.7                3.7                3.7
  ##   43   5      12                2.0                2.0                2.0
  ##   63   6      12                2.0                3.0                3.7
  ##      PersonMax.Dim01 PersonMax.Dim02 PersonMax.Dim03 theta.Dim01 theta.Dim02
  ##   2              4.0             0.6             0.6        1.06          NA
  ##   22             4.0             0.6             0.6       -0.96          NA
  ##   23             0.6             4.0             4.0          NA       -0.07
  ##   41             4.0             4.0             4.0        1.06        0.82
  ##   43             4.0             4.0             4.0       -0.96       -1.11
  ##   63             4.0             4.0             4.0       -0.96       -0.07
  ##      theta.Dim03 error.Dim01 error.Dim02 error.Dim03 WLE.rel.Dim01
  ##   2           NA        1.50          NA          NA          -0.1
  ##   22          NA        1.11          NA          NA          -0.1
  ##   23        0.25          NA        1.17        1.92          -0.1
  ##   41        0.25        1.50        1.48        1.92          -0.1
  ##   43       -1.93        1.11        1.10        1.14          -0.1

# (1) Note that estimated WLE reliabilities are not trustworthy in this example.
# (2) If cases do not possess any observations on dimensions, then WLEs
#     and their corresponding standard errors are set to NA.

#############################################################################
# EXAMPLE 3: Partial credit model | Comparison WLEs with PP package
#############################################################################

library(PP)
data(data.gpcm)
dat <- data.gpcm
I <- ncol(dat)

#****************************************
#*** Model 1: Partial Credit Model

# estimation in TAM
mod1 <- TAM::tam.mml( dat )
summary(mod1)

#-- WLE estimation in TAM
tamw1 <- TAM::tam.wle( mod1 )

#-- WLE estimation with PP package
# convert AXsi parameters into thres parameters for PP
AXsi0 <- - mod1$AXsi[,-1]
b <- AXsi0
K <- ncol(AXsi0)
for (cc in 2:K){
    b[,cc] <- AXsi0[,cc] - AXsi0[,cc-1]
}
# WLE estimation in PP
ppw1 <- PP::PP_gpcm( respm=as.matrix(dat),  thres=t(b), slopes=rep(1,I) )

#-- compare results
dfr <- cbind( tamw1[, c("theta","error") ], ppw1$resPP)
head( round(dfr,3))
  ##      theta error resPP.estimate resPP.SE nsteps
  ##   1 -1.006 0.973         -1.006    0.973      8
  ##   2 -0.122 0.904         -0.122    0.904      8
  ##   3  0.640 0.836          0.640    0.836      8
  ##   4  0.640 0.836          0.640    0.836      8
  ##   5  0.640 0.836          0.640    0.836      8
  ##   6 -1.941 1.106         -1.941    1.106      8
plot( dfr$resPP.estimate, dfr$theta, pch=16, xlab="PP", ylab="TAM")
lines( c(-10,10), c(-10,10) )

#****************************************
#*** Model 2: Generalized partial Credit Model

# estimation in TAM
mod2 <- TAM::tam.mml.2pl( dat, irtmodel="GPCM" )
summary(mod2)

#-- WLE estimation in TAM
tamw2 <- TAM::tam.wle( mod2 )

#-- WLE estimation in PP
# convert AXsi parameters into thres and slopes parameters for PP
AXsi0 <- - mod2$AXsi[,-1]
slopes <- mod2$B[,2,1]
K <- ncol(AXsi0)
slopesM <- matrix( slopes, I, ncol=K )
AXsi0 <- AXsi0 / slopesM
b <- AXsi0
for (cc in 2:K){
    b[,cc] <- AXsi0[,cc] - AXsi0[,cc-1]
}
# estimation in PP
ppw2 <- PP::PP_gpcm( respm=as.matrix(dat),  thres=t(b), slopes=slopes )

#-- compare results
dfr <- cbind( tamw2[, c("theta","error") ], ppw2$resPP)
head( round(dfr,3))
  ##      theta error resPP.estimate resPP.SE nsteps
  ##   1 -0.476 0.971         -0.476    0.971     13
  ##   2 -0.090 0.973         -0.090    0.973     13
  ##   3  0.311 0.960          0.311    0.960     13
  ##   4  0.311 0.960          0.311    0.960     13
  ##   5  1.749 0.813          1.749    0.813     13
  ##   6 -1.513 1.032         -1.513    1.032     13

## End(Not run)

Example output

Loading required package: CDM
Loading required package: mvtnorm
**********************************
** CDM 7.3-17 (2019-03-18 18:33:40)      
** Cognitive Diagnostic Models  **
**********************************

* TAM 3.1-45 (2019-03-18 16:53:26)
....................................................
Processing Data      2020-09-04 13:04:54 
    * Response Data: 2000 Persons and  40 Items 
    * Numerical integration with 21 nodes
    * Created Design Matrices   ( 2020-09-04 13:04:54 )
    * Calculated Sufficient Statistics   ( 2020-09-04 13:04:54 )
....................................................
Iteration 1     2020-09-04 13:04:54
E Step
M Step Intercepts   |----
  Deviance = 84803.9272
  Maximum item intercept parameter change: 0.33272
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.125876
....................................................
Iteration 2     2020-09-04 13:04:54
E Step
M Step Intercepts   |---
  Deviance = 84201.8406 | Absolute change: 602.0866 | Relative change: 0.00715052
  Maximum item intercept parameter change: 0.044568
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.167316
....................................................
Iteration 3     2020-09-04 13:04:54
E Step
M Step Intercepts   |--
  Deviance = 84162.1461 | Absolute change: 39.6945 | Relative change: 0.00047164
  Maximum item intercept parameter change: 0.017468
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.069771
....................................................
Iteration 4     2020-09-04 13:04:54
E Step
M Step Intercepts   |--
  Deviance = 84156.6153 | Absolute change: 5.5308 | Relative change: 6.572e-05
  Maximum item intercept parameter change: 0.006594
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.026369
....................................................
Iteration 5     2020-09-04 13:04:54
E Step
M Step Intercepts   |--
  Deviance = 84155.879 | Absolute change: 0.7363 | Relative change: 8.75e-06
  Maximum item intercept parameter change: 0.00247
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.00966
....................................................
Iteration 6     2020-09-04 13:04:54
E Step
M Step Intercepts   |--
  Deviance = 84155.7823 | Absolute change: 0.0966 | Relative change: 1.15e-06
  Maximum item intercept parameter change: 0.000952
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.0035
....................................................
Iteration 7     2020-09-04 13:04:54
E Step
M Step Intercepts   |--
  Deviance = 84155.7696 | Absolute change: 0.0128 | Relative change: 1.5e-07
  Maximum item intercept parameter change: 0.000396
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.001263
....................................................
Iteration 8     2020-09-04 13:04:54
E Step
M Step Intercepts   |--
  Deviance = 84155.7678 | Absolute change: 0.0018 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.00019
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000455
....................................................
Iteration 9     2020-09-04 13:04:54
E Step
M Step Intercepts   |--
  Deviance = 84155.7674 | Absolute change: 4e-04 | Relative change: 0
  Maximum item intercept parameter change: 0.000111
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000164
....................................................
Iteration 10     2020-09-04 13:04:55
E Step
M Step Intercepts   |-
  Deviance = 84155.7672 | Absolute change: 2e-04 | Relative change: 0
  Maximum item intercept parameter change: 7.9e-05
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 5.9e-05
....................................................
Item Parameters
   xsi.index xsi.label     est
1          1        I1 -1.9590
2          2        I2 -1.8570
3          3        I3 -1.7444
4          4        I4 -1.6407
5          5        I5 -1.5448
6          6        I6 -1.5344
7          7        I7 -1.3466
8          8        I8 -1.3499
9          9        I9 -1.2603
10        10       I10 -1.0469
11        11       I11 -1.0233
12        12       I12 -0.8563
13        13       I13 -0.8002
14        14       I14 -0.7447
15        15       I15 -0.5202
16        16       I16 -0.3962
17        17       I17 -0.3727
18        18       I18 -0.2298
19        19       I19 -0.1062
20        20       I20 -0.0522
21        21       I21  0.0376
22        22       I22  0.1044
23        23       I23  0.3343
24        24       I24  0.4232
25        25       I25  0.5209
26        26       I26  0.6415
27        27       I27  0.6443
28        28       I28  0.8484
29        29       I29  0.9395
30        30       I30  1.0179
31        31       I31  1.1160
32        32       I32  1.1372
33        33       I33  1.3117
34        34       I34  1.3149
35        35       I35  1.5559
36        36       I36  1.6198
37        37       I37  1.7039
38        38       I38  1.7490
39        39       I39  1.9352
40        40       I40  2.0502
...................................
Regression Coefficients
     [,1]
[1,]    0

Variance:
      [,1]
[1,] 1.404


EAP Reliability:
[1] 0.899

-----------------------------
Start:  2020-09-04 13:04:54
End:  2020-09-04 13:04:55 
Time difference of 0.5996695 secs

Iteration in WLE/MLE estimation  1   | Maximal change  0.8281 
Iteration in WLE/MLE estimation  2   | Maximal change  0.4335 
Iteration in WLE/MLE estimation  3   | Maximal change  0.0883 
Iteration in WLE/MLE estimation  4   | Maximal change  7e-04 
Iteration in WLE/MLE estimation  5   | Maximal change  0 
----
 WLE Reliability= 0.894 
Object of class 'tam.wle'
Call: TAM::tam.wle(tamobj = mod1)

  WLEs for 2000 observations and 1 dimension

  WLE Reliability=0.894
  Average error variance=0.165
  WLE mean=0.001
  WLE variance=1.554
Object of class 'tam.wle'
Call: TAM::tam.wle(tamobj = mod1)

  WLEs for 2000 observations and 1 dimension

  WLE Reliability=0.894
  Average error variance=0.165
  WLE mean=0.001
  WLE variance=1.554
Iteration in WLE/MLE estimation  1   | Maximal change  0.5358 
Iteration in WLE/MLE estimation  2   | Maximal change  0.06 
Iteration in WLE/MLE estimation  3   | Maximal change  9e-04 
Iteration in WLE/MLE estimation  4   | Maximal change  0 
----
 WLE Reliability= 0.903 
Iteration in WLE/MLE estimation  1   | Maximal change  0.8281 
Iteration in WLE/MLE estimation  2   | Maximal change  0.4335 
Iteration in WLE/MLE estimation  3   | Maximal change  0.0883 
Iteration in WLE/MLE estimation  4   | Maximal change  7e-04 
Iteration in WLE/MLE estimation  5   | Maximal change  0 
----
 WLE Reliability= 0.894 
....................................................
Processing Data      2020-09-04 13:04:56 
    * Response Data: 328 Persons and  12 Items 
    * Quasi Monte Carlo integration with 1000 nodes
    * Created Design Matrices   ( 2020-09-04 13:04:56 )
    * Calculated Sufficient Statistics   ( 2020-09-04 13:04:56 )
....................................................
Iteration 1     2020-09-04 13:04:56
E Step
M Step Intercepts   |----
  Deviance = 4003.1379
  Maximum item intercept parameter change: 0.33846
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.158291
....................................................
Iteration 2     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3954.3004 | Absolute change: 48.8376 | Relative change: 0.01235049
  Maximum item intercept parameter change: 0.094499
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.154503
....................................................
Iteration 3     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3925.3657 | Absolute change: 28.9346 | Relative change: 0.00737119
  Maximum item intercept parameter change: 0.072796
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.158581
....................................................
Iteration 4     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3903.7858 | Absolute change: 21.5799 | Relative change: 0.00552795
  Maximum item intercept parameter change: 0.067912
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.17757
....................................................
Iteration 5     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3888.6497 | Absolute change: 15.136 | Relative change: 0.00389237
  Maximum item intercept parameter change: 0.064646
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.18166
....................................................
Iteration 6     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3878.6373 | Absolute change: 10.0124 | Relative change: 0.00258143
  Maximum item intercept parameter change: 0.059962
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.173761
....................................................
Iteration 7     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3872.2072 | Absolute change: 6.4301 | Relative change: 0.00166059
  Maximum item intercept parameter change: 0.054199
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.158879
....................................................
Iteration 8     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3868.0549 | Absolute change: 4.1523 | Relative change: 0.00107349
  Maximum item intercept parameter change: 0.048255
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.141682
....................................................
Iteration 9     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3865.2731 | Absolute change: 2.7817 | Relative change: 0.00071967
  Maximum item intercept parameter change: 0.042761
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.125223
....................................................
Iteration 10     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3863.3021 | Absolute change: 1.9711 | Relative change: 0.0005102
  Maximum item intercept parameter change: 0.037988
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.110931
....................................................
Iteration 11     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3861.8189 | Absolute change: 1.4832 | Relative change: 0.00038406
  Maximum item intercept parameter change: 0.033971
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.099134
....................................................
Iteration 12     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3860.6431 | Absolute change: 1.1758 | Relative change: 0.00030457
  Maximum item intercept parameter change: 0.030627
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.089604
....................................................
Iteration 13     2020-09-04 13:04:57
E Step
M Step Intercepts   |---
  Deviance = 3859.6737 | Absolute change: 0.9694 | Relative change: 0.00025116
  Maximum item intercept parameter change: 0.027838
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.081911
....................................................
Iteration 14     2020-09-04 13:04:58
E Step
M Step Intercepts   |---
  Deviance = 3858.8528 | Absolute change: 0.8209 | Relative change: 0.00021273
  Maximum item intercept parameter change: 0.025491
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.075614
....................................................
Iteration 15     2020-09-04 13:04:58
E Step
M Step Intercepts   |---
  Deviance = 3858.1455 | Absolute change: 0.7073 | Relative change: 0.00018332
  Maximum item intercept parameter change: 0.023486
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.070338
....................................................
Iteration 16     2020-09-04 13:04:58
E Step
M Step Intercepts   |---
  Deviance = 3857.5295 | Absolute change: 0.616 | Relative change: 0.00015968
  Maximum item intercept parameter change: 0.021746
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.065793
....................................................
Iteration 17     2020-09-04 13:04:58
E Step
M Step Intercepts   |---
  Deviance = 3856.9894 | Absolute change: 0.5401 | Relative change: 0.00014003
  Maximum item intercept parameter change: 0.02021
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.061771
....................................................
Iteration 18     2020-09-04 13:04:58
E Step
M Step Intercepts   |---
  Deviance = 3856.5139 | Absolute change: 0.4755 | Relative change: 0.0001233
  Maximum item intercept parameter change: 0.018833
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.058123
....................................................
Iteration 19     2020-09-04 13:04:58
E Step
M Step Intercepts   |--
  Deviance = 3856.0941 | Absolute change: 0.4198 | Relative change: 0.00010886
  Maximum item intercept parameter change: 0.017582
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.054752
....................................................
Iteration 20     2020-09-04 13:04:58
E Step
M Step Intercepts   |--
  Deviance = 3855.7229 | Absolute change: 0.3713 | Relative change: 9.629e-05
  Maximum item intercept parameter change: 0.016433
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.051591
....................................................
Iteration 21     2020-09-04 13:04:58
E Step
M Step Intercepts   |--
  Deviance = 3855.3941 | Absolute change: 0.3287 | Relative change: 8.527e-05
  Maximum item intercept parameter change: 0.015369
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.0486
....................................................
Iteration 22     2020-09-04 13:04:58
E Step
M Step Intercepts   |--
  Deviance = 3855.1027 | Absolute change: 0.2914 | Relative change: 7.559e-05
  Maximum item intercept parameter change: 0.014376
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.045752
....................................................
Iteration 23     2020-09-04 13:04:58
E Step
M Step Intercepts   |--
  Deviance = 3854.8442 | Absolute change: 0.2585 | Relative change: 6.707e-05
  Maximum item intercept parameter change: 0.013446
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.043034
....................................................
Iteration 24     2020-09-04 13:04:58
E Step
M Step Intercepts   |--
  Deviance = 3854.6146 | Absolute change: 0.2296 | Relative change: 5.956e-05
  Maximum item intercept parameter change: 0.012572
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.040435
....................................................
Iteration 25     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3854.4105 | Absolute change: 0.2041 | Relative change: 5.294e-05
  Maximum item intercept parameter change: 0.011749
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.037952
....................................................
Iteration 26     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3854.229 | Absolute change: 0.1815 | Relative change: 4.71e-05
  Maximum item intercept parameter change: 0.010974
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.035581
....................................................
Iteration 27     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3854.0673 | Absolute change: 0.1616 | Relative change: 4.194e-05
  Maximum item intercept parameter change: 0.010243
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.033322
....................................................
Iteration 28     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3853.9232 | Absolute change: 0.1441 | Relative change: 3.739e-05
  Maximum item intercept parameter change: 0.009555
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.031172
....................................................
Iteration 29     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3853.7947 | Absolute change: 0.1286 | Relative change: 3.337e-05
  Maximum item intercept parameter change: 0.008906
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.029131
....................................................
Iteration 30     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3853.6798 | Absolute change: 0.1149 | Relative change: 2.981e-05
  Maximum item intercept parameter change: 0.008296
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.027198
....................................................
Iteration 31     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3853.577 | Absolute change: 0.1027 | Relative change: 2.666e-05
  Maximum item intercept parameter change: 0.007723
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.025369
....................................................
Iteration 32     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3853.4851 | Absolute change: 0.092 | Relative change: 2.387e-05
  Maximum item intercept parameter change: 0.007184
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.023644
....................................................
Iteration 33     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3853.4026 | Absolute change: 0.0825 | Relative change: 2.14e-05
  Maximum item intercept parameter change: 0.006679
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.022018
....................................................
Iteration 34     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3853.3286 | Absolute change: 0.074 | Relative change: 1.921e-05
  Maximum item intercept parameter change: 0.006206
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.020489
....................................................
Iteration 35     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3853.2621 | Absolute change: 0.0665 | Relative change: 1.726e-05
  Maximum item intercept parameter change: 0.005763
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.019054
....................................................
Iteration 36     2020-09-04 13:04:59
E Step
M Step Intercepts   |--
  Deviance = 3853.2022 | Absolute change: 0.0598 | Relative change: 1.553e-05
  Maximum item intercept parameter change: 0.005349
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.017708
....................................................
Iteration 37     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3853.1483 | Absolute change: 0.0539 | Relative change: 1.399e-05
  Maximum item intercept parameter change: 0.004962
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.016448
....................................................
Iteration 38     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3853.0997 | Absolute change: 0.0486 | Relative change: 1.261e-05
  Maximum item intercept parameter change: 0.004601
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.01527
....................................................
Iteration 39     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3853.0559 | Absolute change: 0.0439 | Relative change: 1.138e-05
  Maximum item intercept parameter change: 0.004265
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.014169
....................................................
Iteration 40     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3853.0163 | Absolute change: 0.0396 | Relative change: 1.028e-05
  Maximum item intercept parameter change: 0.003952
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.013142
....................................................
Iteration 41     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.9805 | Absolute change: 0.0358 | Relative change: 9.3e-06
  Maximum item intercept parameter change: 0.00366
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.012185
....................................................
Iteration 42     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.948 | Absolute change: 0.0324 | Relative change: 8.41e-06
  Maximum item intercept parameter change: 0.003389
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.011293
....................................................
Iteration 43     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.9187 | Absolute change: 0.0294 | Relative change: 7.62e-06
  Maximum item intercept parameter change: 0.003137
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.010463
....................................................
Iteration 44     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.8921 | Absolute change: 0.0266 | Relative change: 6.9e-06
  Maximum item intercept parameter change: 0.002903
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.009692
....................................................
Iteration 45     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.868 | Absolute change: 0.0241 | Relative change: 6.26e-06
  Maximum item intercept parameter change: 0.002685
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.008975
....................................................
Iteration 46     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.8461 | Absolute change: 0.0219 | Relative change: 5.68e-06
  Maximum item intercept parameter change: 0.002483
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.008309
....................................................
Iteration 47     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.8263 | Absolute change: 0.0198 | Relative change: 5.15e-06
  Maximum item intercept parameter change: 0.002296
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.00769
....................................................
Iteration 48     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.8083 | Absolute change: 0.018 | Relative change: 4.67e-06
  Maximum item intercept parameter change: 0.002123
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.007116
....................................................
Iteration 49     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.7919 | Absolute change: 0.0163 | Relative change: 4.24e-06
  Maximum item intercept parameter change: 0.001962
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.006584
....................................................
Iteration 50     2020-09-04 13:05:00
E Step
M Step Intercepts   |--
  Deviance = 3852.7771 | Absolute change: 0.0148 | Relative change: 3.85e-06
  Maximum item intercept parameter change: 0.001813
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.006091
....................................................
Item Parameters
   xsi.index xsi.label     est
1          1        A1 -2.3310
2          2        A2 -1.4212
3          3        A3 -0.3950
4          4        A4  0.2217
5          5        B1 -1.0855
6          6        B2 -0.0317
7          7        B3 -2.6595
8          8        B4 -0.9136
9          9        C1 -3.9636
10        10        C2 -1.4432
11        11        C3 -2.9482
12        12        C4 -1.6358
...................................
Regression Coefficients
     [,1] [,2] [,3]
[1,]    0    0    0

Variance:
      [,1]  [,2]  [,3]
[1,] 2.081 1.153 1.410
[2,] 1.153 0.989 1.046
[3,] 1.410 1.046 3.780

Correlation Matrix:
       [,1]   [,2]   [,3]
[1,] 1.0000 0.8040 0.5026
[2,] 0.8040 1.0000 0.5408
[3,] 0.5026 0.5408 1.0000


EAP Reliability:
 Dim1  Dim2  Dim3 
0.618 0.565 0.576 

-----------------------------
Start:  2020-09-04 13:04:56
End:  2020-09-04 13:05:01 
Time difference of 4.634817 secs

------------------------------------------------------------
TAM 3.1-45 (2019-03-18 16:53:26) 
sh: 1: cannot create /dev/null: Permission denied
R version 3.4.4 (2018-03-15) x86_64, linux-gnu | nodename=worker1 | login=unknown 

Date of Analysis: 2020-09-04 13:05:01 
Time difference of 4.634817 secs
Computation time: 4.634817 

Multidimensional Item Response Model in TAM 

IRT Model: 1PL
Call:
TAM::tam.mml(resp = resp, Q = Q, control = list(snodes = 1000, 
    maxiter = 50))

------------------------------------------------------------
Number of iterations = 50 
Quasi Monte Carlo integration with 1000 integration points

Deviance = 3852.78 
Log likelihood = -1926.39 
Number of persons = 328 
Number of persons used = 328 
Number of items = 12 
Number of estimated parameters = 18 
    Item threshold parameters = 12 
    Item slope parameters = 0 
    Regression parameters = 0 
    Variance/covariance parameters = 6 

AIC = 3889  | penalty = 36    | AIC=-2*LL + 2*p 
AIC3 = 3907  | penalty = 54    | AIC3=-2*LL + 3*p 
BIC = 3957  | penalty = 104.27    | BIC=-2*LL + log(n)*p 
aBIC = 3900  | penalty = 46.96    | aBIC=-2*LL + log((n-2)/24)*p  (adjusted BIC) 
CAIC = 3975  | penalty = 122.27    | CAIC=-2*LL + [log(n)+1]*p  (consistent AIC) 
AICc = 3891  | penalty = 38.21    | AICc=-2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC) 

------------------------------------------------------------
EAP Reliability
 Dim1  Dim2  Dim3 
0.618 0.565 0.576 
------------------------------------------------------------
Covariances and Variances
      [,1]  [,2]  [,3]
[1,] 2.081 1.153 1.410
[2,] 1.153 0.989 1.046
[3,] 1.410 1.046 3.780
------------------------------------------------------------
Correlations and Standard Deviations (in the diagonal)
      [,1]  [,2]  [,3]
[1,] 1.443 0.804 0.503
[2,] 0.804 0.994 0.541
[3,] 0.503 0.541 1.944
------------------------------------------------------------
Regression Coefficients
     [,1] [,2] [,3]
[1,]    0    0    0
------------------------------------------------------------
Item Parameters -A*Xsi
   item   N     M xsi.item AXsi_.Cat1 B.Cat1.Dim1 B.Cat1.Dim2 B.Cat1.Dim3
A1   A1 327 0.850   -2.331     -2.331           1           0           0
A2   A2 327 0.737   -1.421     -1.421           1           0           0
A3   A3 327 0.569   -0.395     -0.395           1           0           0
A4   A4 327 0.459    0.222      0.222           1           0           0
B1   B1 326 0.712   -1.086     -1.086           0           1           0
B2   B2 326 0.506   -0.032     -0.032           0           1           0
B3   B3 326 0.908   -2.661     -2.661           0           1           0
B4   B4 326 0.681   -0.914     -0.914           0           1           0
C1   C1 326 0.933   -3.962     -3.962           0           0           1
C2   C2 326 0.715   -1.442     -1.442           0           0           1
C3   C3 326 0.871   -2.947     -2.947           0           0           1
C4   C4 326 0.739   -1.635     -1.635           0           0           1
Iteration in WLE/MLE estimation  1   | Maximal change  2.6924 
Iteration in WLE/MLE estimation  2   | Maximal change  1.9178 
Iteration in WLE/MLE estimation  3   | Maximal change  0.3971 
Iteration in WLE/MLE estimation  4   | Maximal change  0.0876 

-------
WLE Reliability (Dimension1)=0.123 
WLE Reliability (Dimension2)=-0.138 
WLE Reliability (Dimension3)=-0.263 
Object of class 'tam.wle'
Call: TAM::tam.wle(tamobj = mod, Msteps = 3)

  WLEs for 328 observations and 3 dimensions

  WLE Reliability (Dimension 1)=0.123
  Average error variance (Dimension 1)=1.994
  WLE mean (Dimension 1)=-0.186
  WLE variance (Dimension 1)=2.274

  WLE Reliability (Dimension 2)=-0.138
  Average error variance (Dimension 2)=1.904
  WLE mean (Dimension 2)=-0.167
  WLE variance (Dimension 2)=1.673

  WLE Reliability (Dimension 3)=-0.263
  Average error variance (Dimension 3)=2.539
  WLE mean (Dimension 3)=-0.892
  WLE variance (Dimension 3)=2.01
PP package calling ...
Follow this project on github: https://github.com/manuelreif/PP.git
....................................................
Processing Data      2020-09-04 13:05:02 
    * Response Data: 392 Persons and  3 Items 
    * Numerical integration with 21 nodes
    * Created Design Matrices   ( 2020-09-04 13:05:02 )
    * Calculated Sufficient Statistics   ( 2020-09-04 13:05:02 )
....................................................
Iteration 1     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2486.2524
  Maximum item intercept parameter change: 0.790823
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.017414
....................................................
Iteration 2     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2469.1636 | Absolute change: 17.0889 | Relative change: 0.00692092
  Maximum item intercept parameter change: 0.579856
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.03271
....................................................
Iteration 3     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2467.1203 | Absolute change: 2.0433 | Relative change: 0.00082821
  Maximum item intercept parameter change: 0.080809
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.035077
....................................................
Iteration 4     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2466.4828 | Absolute change: 0.6375 | Relative change: 0.00025845
  Maximum item intercept parameter change: 0.030474
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.028971
....................................................
Iteration 5     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2466.0236 | Absolute change: 0.4592 | Relative change: 0.00018622
  Maximum item intercept parameter change: 0.025533
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.025035
....................................................
Iteration 6     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2465.6593 | Absolute change: 0.3643 | Relative change: 0.00014774
  Maximum item intercept parameter change: 0.022346
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.021808
....................................................
Iteration 7     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2465.3684 | Absolute change: 0.2909 | Relative change: 0.00011801
  Maximum item intercept parameter change: 0.019725
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.019093
....................................................
Iteration 8     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2465.1349 | Absolute change: 0.2335 | Relative change: 9.471e-05
  Maximum item intercept parameter change: 0.017471
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.016791
....................................................
Iteration 9     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.9467 | Absolute change: 0.1882 | Relative change: 7.634e-05
  Maximum item intercept parameter change: 0.015522
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.014826
....................................................
Iteration 10     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.7945 | Absolute change: 0.1523 | Relative change: 6.177e-05
  Maximum item intercept parameter change: 0.013829
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.013138
....................................................
Iteration 11     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.6708 | Absolute change: 0.1236 | Relative change: 5.016e-05
  Maximum item intercept parameter change: 0.012352
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.01168
....................................................
Iteration 12     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.5701 | Absolute change: 0.1007 | Relative change: 4.086e-05
  Maximum item intercept parameter change: 0.01106
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.010413
....................................................
Iteration 13     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.4879 | Absolute change: 0.0823 | Relative change: 3.338e-05
  Maximum item intercept parameter change: 0.009923
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.009307
....................................................
Iteration 14     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.4205 | Absolute change: 0.0674 | Relative change: 2.734e-05
  Maximum item intercept parameter change: 0.008921
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.008339
....................................................
Iteration 15     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.3652 | Absolute change: 0.0553 | Relative change: 2.244e-05
  Maximum item intercept parameter change: 0.008035
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.007486
....................................................
Iteration 16     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.3197 | Absolute change: 0.0455 | Relative change: 1.846e-05
  Maximum item intercept parameter change: 0.007248
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.006734
....................................................
Iteration 17     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.2822 | Absolute change: 0.0375 | Relative change: 1.522e-05
  Maximum item intercept parameter change: 0.006547
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.006068
....................................................
Iteration 18     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.2512 | Absolute change: 0.031 | Relative change: 1.257e-05
  Maximum item intercept parameter change: 0.005922
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.005476
....................................................
Iteration 19     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.2256 | Absolute change: 0.0256 | Relative change: 1.039e-05
  Maximum item intercept parameter change: 0.005364
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.004949
....................................................
Iteration 20     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.2044 | Absolute change: 0.0212 | Relative change: 8.61e-06
  Maximum item intercept parameter change: 0.004863
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.004478
....................................................
Iteration 21     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1868 | Absolute change: 0.0176 | Relative change: 7.14e-06
  Maximum item intercept parameter change: 0.004413
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.004057
....................................................
Iteration 22     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1722 | Absolute change: 0.0146 | Relative change: 5.93e-06
  Maximum item intercept parameter change: 0.004009
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.003679
....................................................
Iteration 23     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1601 | Absolute change: 0.0121 | Relative change: 4.93e-06
  Maximum item intercept parameter change: 0.003644
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.00334
....................................................
Iteration 24     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.15 | Absolute change: 0.0101 | Relative change: 4.1e-06
  Maximum item intercept parameter change: 0.003315
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.003034
....................................................
Iteration 25     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1416 | Absolute change: 0.0084 | Relative change: 3.41e-06
  Maximum item intercept parameter change: 0.003018
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.002759
....................................................
Iteration 26     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1346 | Absolute change: 0.007 | Relative change: 2.85e-06
  Maximum item intercept parameter change: 0.00275
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.002511
....................................................
Iteration 27     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1287 | Absolute change: 0.0058 | Relative change: 2.37e-06
  Maximum item intercept parameter change: 0.002506
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.002286
....................................................
Iteration 28     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1238 | Absolute change: 0.0049 | Relative change: 1.98e-06
  Maximum item intercept parameter change: 0.002285
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.002083
....................................................
Iteration 29     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1197 | Absolute change: 0.0041 | Relative change: 1.65e-06
  Maximum item intercept parameter change: 0.002085
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.001899
....................................................
Iteration 30     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1163 | Absolute change: 0.0034 | Relative change: 1.38e-06
  Maximum item intercept parameter change: 0.001903
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.001732
....................................................
Iteration 31     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1135 | Absolute change: 0.0028 | Relative change: 1.16e-06
  Maximum item intercept parameter change: 0.001738
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.00158
....................................................
Iteration 32     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1111 | Absolute change: 0.0024 | Relative change: 9.7e-07
  Maximum item intercept parameter change: 0.001588
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.001442
....................................................
Iteration 33     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1091 | Absolute change: 0.002 | Relative change: 8.1e-07
  Maximum item intercept parameter change: 0.001451
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.001317
....................................................
Iteration 34     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1074 | Absolute change: 0.0017 | Relative change: 6.8e-07
  Maximum item intercept parameter change: 0.001326
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.001203
....................................................
Iteration 35     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.106 | Absolute change: 0.0014 | Relative change: 5.7e-07
  Maximum item intercept parameter change: 0.001212
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.0011
....................................................
Iteration 36     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1049 | Absolute change: 0.0012 | Relative change: 4.8e-07
  Maximum item intercept parameter change: 0.001109
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.001005
....................................................
Iteration 37     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
  Deviance = 2464.1039 | Absolute change: 0.001 | Relative change: 4e-07
  Maximum item intercept parameter change: 0.001014
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000919
....................................................
Iteration 38     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.1031 | Absolute change: 8e-04 | Relative change: 3.3e-07
  Maximum item intercept parameter change: 0.000967
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000841
....................................................
Iteration 39     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.1024 | Absolute change: 7e-04 | Relative change: 2.8e-07
  Maximum item intercept parameter change: 0.000852
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000771
....................................................
Iteration 40     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.1018 | Absolute change: 6e-04 | Relative change: 2.4e-07
  Maximum item intercept parameter change: 0.000777
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000705
....................................................
Iteration 41     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.1013 | Absolute change: 5e-04 | Relative change: 2e-07
  Maximum item intercept parameter change: 0.00071
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000645
....................................................
Iteration 42     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.1009 | Absolute change: 4e-04 | Relative change: 1.7e-07
  Maximum item intercept parameter change: 0.00065
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.00059
....................................................
Iteration 43     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.1006 | Absolute change: 3e-04 | Relative change: 1.4e-07
  Maximum item intercept parameter change: 0.000595
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.00054
....................................................
Iteration 44     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.1003 | Absolute change: 3e-04 | Relative change: 1.2e-07
  Maximum item intercept parameter change: 0.000544
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000495
....................................................
Iteration 45     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.1 | Absolute change: 2e-04 | Relative change: 1e-07
  Maximum item intercept parameter change: 0.000498
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000453
....................................................
Iteration 46     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.0998 | Absolute change: 2e-04 | Relative change: 8e-08
  Maximum item intercept parameter change: 0.000456
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000415
....................................................
Iteration 47     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.0997 | Absolute change: 2e-04 | Relative change: 7e-08
  Maximum item intercept parameter change: 0.000418
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.00038
....................................................
Iteration 48     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.0995 | Absolute change: 1e-04 | Relative change: 6e-08
  Maximum item intercept parameter change: 0.000383
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000348
....................................................
Iteration 49     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.0994 | Absolute change: 1e-04 | Relative change: 5e-08
  Maximum item intercept parameter change: 0.000351
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000318
....................................................
Iteration 50     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.0993 | Absolute change: 1e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.000321
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000292
....................................................
Iteration 51     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
  Deviance = 2464.0992 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000294
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000267
....................................................
Iteration 52     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0991 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000243
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000245
....................................................
Iteration 53     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0991 | Absolute change: 1e-04 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000242
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000223
....................................................
Iteration 54     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.099 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000225
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000204
....................................................
Iteration 55     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.099 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000207
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000187
....................................................
Iteration 56     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.099 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000191
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000172
....................................................
Iteration 57     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0989 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000175
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000157
....................................................
Iteration 58     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0989 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000161
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000144
....................................................
Iteration 59     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0989 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000148
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000132
....................................................
Iteration 60     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0989 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000135
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000121
....................................................
Iteration 61     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0988 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000124
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000111
....................................................
Iteration 62     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0988 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000114
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000102
....................................................
Iteration 63     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0988 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000105
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 9.4e-05
....................................................
Iteration 64     2020-09-04 13:05:02
E Step
M Step Intercepts   |--
  Deviance = 2464.0988 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 9.6e-05
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 8.6e-05
....................................................
Item Parameters
  xsi.index    xsi.label     est
1         1 Comfort_Cat1 -1.3023
2         2 Comfort_Cat2  2.4562
3         3 Comfort_Cat3  2.7271
4         4    Work_Cat1 -1.7063
5         5    Work_Cat2  0.8589
6         6    Work_Cat3  1.6807
7         7 Benefit_Cat1 -1.2328
8         8 Benefit_Cat2  0.8287
9         9 Benefit_Cat3  2.2103
...................................
Regression Coefficients
     [,1]
[1,]    0

Variance:
       [,1]
[1,] 0.6552


EAP Reliability:
[1] 0.452

-----------------------------
Start:  2020-09-04 13:05:02
End:  2020-09-04 13:05:02 
Time difference of 0.1162539 secs

------------------------------------------------------------
TAM 3.1-45 (2019-03-18 16:53:26) 
sh: 1: cannot create /dev/null: Permission denied
R version 3.4.4 (2018-03-15) x86_64, linux-gnu | nodename=worker1 | login=unknown 

Date of Analysis: 2020-09-04 13:05:02 
Time difference of 0.1162539 secs
Computation time: 0.1162539 

Multidimensional Item Response Model in TAM 

IRT Model: 1PL
Call:
TAM::tam.mml(resp = dat)

------------------------------------------------------------
Number of iterations = 64 
Numeric integration with 21 integration points

Deviance = 2464.1 
Log likelihood = -1232.05 
Number of persons = 392 
Number of persons used = 392 
Number of items = 3 
Number of estimated parameters = 10 
    Item threshold parameters = 9 
    Item slope parameters = 0 
    Regression parameters = 0 
    Variance/covariance parameters = 1 

AIC = 2484  | penalty = 20    | AIC=-2*LL + 2*p 
AIC3 = 2494  | penalty = 30    | AIC3=-2*LL + 3*p 
BIC = 2524  | penalty = 59.71    | BIC=-2*LL + log(n)*p 
aBIC = 2492  | penalty = 27.88    | aBIC=-2*LL + log((n-2)/24)*p  (adjusted BIC) 
CAIC = 2534  | penalty = 69.71    | CAIC=-2*LL + [log(n)+1]*p  (consistent AIC) 
AICc = 2485  | penalty = 20.58    | AICc=-2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC) 

------------------------------------------------------------
EAP Reliability
[1] 0.452
------------------------------------------------------------
Covariances and Variances
      [,1]
[1,] 0.655
------------------------------------------------------------
Correlations and Standard Deviations (in the diagonal)
      [,1]
[1,] 0.809
------------------------------------------------------------
Regression Coefficients
     [,1]
[1,]    0
------------------------------------------------------------
Item Parameters -A*Xsi
           item   N     M xsi.item AXsi_.Cat1 AXsi_.Cat2 AXsi_.Cat3 B.Cat1.Dim1
Comfort Comfort 392 0.880    1.294     -1.302      1.154      3.881           1
Work       Work 392 1.278    0.278     -1.706     -0.847      0.833           1
Benefit Benefit 392 1.163    0.602     -1.233     -0.404      1.806           1
        B.Cat2.Dim1 B.Cat3.Dim1
Comfort           2           3
Work              2           3
Benefit           2           3

Item Parameters Xsi
                xsi se.xsi
Comfort_Cat1 -1.302  0.128
Comfort_Cat2  2.456  0.181
Comfort_Cat3  2.727  0.464
Work_Cat1    -1.706  0.155
Work_Cat2     0.859  0.118
Work_Cat3     1.681  0.195
Benefit_Cat1 -1.233  0.137
Benefit_Cat2  0.829  0.120
Benefit_Cat3  2.210  0.236

Item Parameters in IRT parameterization
     item alpha  beta tau.Cat1 tau.Cat2 tau.Cat3
1 Comfort     1 1.294   -2.596    1.163    1.433
2    Work     1 0.278   -1.984    0.581    1.403
3 Benefit     1 0.602   -1.835    0.227    1.608
Iteration in WLE/MLE estimation  1   | Maximal change  1.7075 
Iteration in WLE/MLE estimation  2   | Maximal change  0.3984 
Iteration in WLE/MLE estimation  3   | Maximal change  0.0471 
Iteration in WLE/MLE estimation  4   | Maximal change  0.0068 
Iteration in WLE/MLE estimation  5   | Maximal change  0.001 
Iteration in WLE/MLE estimation  6   | Maximal change  3e-04 
Iteration in WLE/MLE estimation  7   | Maximal change  1e-04 
----
 WLE Reliability= 0.414 
Estimating: GPCM ... 
type = wle 
Estimation finished!
   theta error resPP.estimate resPP.SE nsteps
1 -1.006 0.973         -1.006    0.973      8
2 -0.122 0.904         -0.122    0.904      8
3  0.640 0.836          0.640    0.836      8
4  0.640 0.836          0.640    0.836      8
5  0.640 0.836          0.640    0.836      8
6 -1.941 1.106         -1.941    1.106      8
....................................................
Processing Data      2020-09-04 13:05:02 
    * Response Data: 392 Persons and  3 Items 
    * Numerical integration with 21 nodes
    * Created Design Matrices   ( 2020-09-04 13:05:02 )
    * Calculated Sufficient Statistics   ( 2020-09-04 13:05:02 )
....................................................
Iteration 1     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2486.2524
  Maximum item intercept parameter change: 0.790823
  Maximum item slope parameter change: 0.353401
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 2     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2465.6876 | Absolute change: 20.5648 | Relative change: 0.00834039
  Maximum item intercept parameter change: 0.469889
  Maximum item slope parameter change: 0.300704
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 3     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2461.0816 | Absolute change: 4.6061 | Relative change: 0.00187156
  Maximum item intercept parameter change: 0.118665
  Maximum item slope parameter change: 0.253172
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 4     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2458.218 | Absolute change: 2.8636 | Relative change: 0.00116491
  Maximum item intercept parameter change: 0.093858
  Maximum item slope parameter change: 0.213087
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 5     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2456.0544 | Absolute change: 2.1636 | Relative change: 0.00088093
  Maximum item intercept parameter change: 0.075944
  Maximum item slope parameter change: 0.175054
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 6     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2454.4358 | Absolute change: 1.6186 | Relative change: 0.00065945
  Maximum item intercept parameter change: 0.059855
  Maximum item slope parameter change: 0.140008
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 7     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2453.2727 | Absolute change: 1.163 | Relative change: 0.00047408
  Maximum item intercept parameter change: 0.057347
  Maximum item slope parameter change: 0.10899
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 8     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2452.4656 | Absolute change: 0.8071 | Relative change: 0.0003291
  Maximum item intercept parameter change: 0.054259
  Maximum item slope parameter change: 0.082826
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 9     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2451.9179 | Absolute change: 0.5478 | Relative change: 0.00022341
  Maximum item intercept parameter change: 0.049746
  Maximum item slope parameter change: 0.061746
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 10     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2451.5489 | Absolute change: 0.3689 | Relative change: 0.00015048
  Maximum item intercept parameter change: 0.044552
  Maximum item slope parameter change: 0.053892
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 11     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |---
  Deviance = 2451.2994 | Absolute change: 0.2495 | Relative change: 0.0001018
  Maximum item intercept parameter change: 0.039203
  Maximum item slope parameter change: 0.04691
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 12     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2451.1287 | Absolute change: 0.1708 | Relative change: 6.966e-05
  Maximum item intercept parameter change: 0.034038
  Maximum item slope parameter change: 0.040388
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 13     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2451.0102 | Absolute change: 0.1185 | Relative change: 4.835e-05
  Maximum item intercept parameter change: 0.029244
  Maximum item slope parameter change: 0.034461
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 14     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.9268 | Absolute change: 0.0833 | Relative change: 3.4e-05
  Maximum item intercept parameter change: 0.024912
  Maximum item slope parameter change: 0.029658
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 15     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.8676 | Absolute change: 0.0593 | Relative change: 2.418e-05
  Maximum item intercept parameter change: 0.021066
  Maximum item slope parameter change: 0.026141
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 16     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.8251 | Absolute change: 0.0425 | Relative change: 1.734e-05
  Maximum item intercept parameter change: 0.017694
  Maximum item slope parameter change: 0.023025
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 17     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7944 | Absolute change: 0.0307 | Relative change: 1.252e-05
  Maximum item intercept parameter change: 0.014763
  Maximum item slope parameter change: 0.020291
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 18     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7721 | Absolute change: 0.0223 | Relative change: 9.1e-06
  Maximum item intercept parameter change: 0.012233
  Maximum item slope parameter change: 0.017909
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 19     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7558 | Absolute change: 0.0163 | Relative change: 6.65e-06
  Maximum item intercept parameter change: 0.010059
  Maximum item slope parameter change: 0.015844
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 20     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7438 | Absolute change: 0.012 | Relative change: 4.88e-06
  Maximum item intercept parameter change: 0.008199
  Maximum item slope parameter change: 0.014059
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 21     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.735 | Absolute change: 0.0089 | Relative change: 3.61e-06
  Maximum item intercept parameter change: 0.006616
  Maximum item slope parameter change: 0.01252
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 22     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7284 | Absolute change: 0.0066 | Relative change: 2.7e-06
  Maximum item intercept parameter change: 0.005897
  Maximum item slope parameter change: 0.011196
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 23     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7234 | Absolute change: 0.005 | Relative change: 2.03e-06
  Maximum item intercept parameter change: 0.005277
  Maximum item slope parameter change: 0.010057
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 24     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7196 | Absolute change: 0.0038 | Relative change: 1.55e-06
  Maximum item intercept parameter change: 0.004744
  Maximum item slope parameter change: 0.009076
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 25     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7166 | Absolute change: 0.003 | Relative change: 1.2e-06
  Maximum item intercept parameter change: 0.004285
  Maximum item slope parameter change: 0.008233
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 26     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7143 | Absolute change: 0.0023 | Relative change: 9.5e-07
  Maximum item intercept parameter change: 0.00389
  Maximum item slope parameter change: 0.007507
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 27     2020-09-04 13:05:02
E Step
M Step Intercepts   |----
M Step Slopes       |--
  Deviance = 2450.7124 | Absolute change: 0.0019 | Relative change: 7.6e-07
  Maximum item intercept parameter change: 0.00355
  Maximum item slope parameter change: 0.006881
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 28     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7109 | Absolute change: 0.0015 | Relative change: 6.3e-07
  Maximum item intercept parameter change: 0.003292
  Maximum item slope parameter change: 0.006358
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 29     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7096 | Absolute change: 0.0013 | Relative change: 5.3e-07
  Maximum item intercept parameter change: 0.003013
  Maximum item slope parameter change: 0.005887
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 30     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7085 | Absolute change: 0.0011 | Relative change: 4.5e-07
  Maximum item intercept parameter change: 0.002789
  Maximum item slope parameter change: 0.005479
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 31     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7075 | Absolute change: 0.001 | Relative change: 3.9e-07
  Maximum item intercept parameter change: 0.002596
  Maximum item slope parameter change: 0.005124
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 32     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7067 | Absolute change: 9e-04 | Relative change: 3.5e-07
  Maximum item intercept parameter change: 0.002429
  Maximum item slope parameter change: 0.004816
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 33     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7059 | Absolute change: 8e-04 | Relative change: 3.1e-07
  Maximum item intercept parameter change: 0.002284
  Maximum item slope parameter change: 0.004546
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 34     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7052 | Absolute change: 7e-04 | Relative change: 2.9e-07
  Maximum item intercept parameter change: 0.002157
  Maximum item slope parameter change: 0.004309
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 35     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7046 | Absolute change: 7e-04 | Relative change: 2.7e-07
  Maximum item intercept parameter change: 0.002046
  Maximum item slope parameter change: 0.0041
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 36     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7039 | Absolute change: 6e-04 | Relative change: 2.5e-07
  Maximum item intercept parameter change: 0.001947
  Maximum item slope parameter change: 0.003915
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 37     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7034 | Absolute change: 6e-04 | Relative change: 2.3e-07
  Maximum item intercept parameter change: 0.00186
  Maximum item slope parameter change: 0.00375
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 38     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7028 | Absolute change: 5e-04 | Relative change: 2.2e-07
  Maximum item intercept parameter change: 0.001783
  Maximum item slope parameter change: 0.003603
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 39     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7023 | Absolute change: 5e-04 | Relative change: 2.1e-07
  Maximum item intercept parameter change: 0.001714
  Maximum item slope parameter change: 0.003471
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 40     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7018 | Absolute change: 5e-04 | Relative change: 2e-07
  Maximum item intercept parameter change: 0.001652
  Maximum item slope parameter change: 0.003351
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 41     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7014 | Absolute change: 5e-04 | Relative change: 1.9e-07
  Maximum item intercept parameter change: 0.001595
  Maximum item slope parameter change: 0.003243
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 42     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7009 | Absolute change: 4e-04 | Relative change: 1.8e-07
  Maximum item intercept parameter change: 0.001544
  Maximum item slope parameter change: 0.003143
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 43     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7005 | Absolute change: 4e-04 | Relative change: 1.7e-07
  Maximum item intercept parameter change: 0.001542
  Maximum item slope parameter change: 0.003052
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 44     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.7001 | Absolute change: 4e-04 | Relative change: 1.7e-07
  Maximum item intercept parameter change: 0.001543
  Maximum item slope parameter change: 0.002968
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 45     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6997 | Absolute change: 4e-04 | Relative change: 1.6e-07
  Maximum item intercept parameter change: 0.001538
  Maximum item slope parameter change: 0.00289
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 46     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6993 | Absolute change: 4e-04 | Relative change: 1.5e-07
  Maximum item intercept parameter change: 0.00153
  Maximum item slope parameter change: 0.002817
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 47     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6989 | Absolute change: 4e-04 | Relative change: 1.5e-07
  Maximum item intercept parameter change: 0.001518
  Maximum item slope parameter change: 0.002748
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 48     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6986 | Absolute change: 3e-04 | Relative change: 1.4e-07
  Maximum item intercept parameter change: 0.001503
  Maximum item slope parameter change: 0.002683
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 49     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6983 | Absolute change: 3e-04 | Relative change: 1.4e-07
  Maximum item intercept parameter change: 0.001486
  Maximum item slope parameter change: 0.002622
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 50     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6979 | Absolute change: 3e-04 | Relative change: 1.3e-07
  Maximum item intercept parameter change: 0.001467
  Maximum item slope parameter change: 0.002564
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 51     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6976 | Absolute change: 3e-04 | Relative change: 1.3e-07
  Maximum item intercept parameter change: 0.001446
  Maximum item slope parameter change: 0.002509
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 52     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6973 | Absolute change: 3e-04 | Relative change: 1.2e-07
  Maximum item intercept parameter change: 0.001425
  Maximum item slope parameter change: 0.002455
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 53     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.697 | Absolute change: 3e-04 | Relative change: 1.2e-07
  Maximum item intercept parameter change: 0.001402
  Maximum item slope parameter change: 0.002405
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 54     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6968 | Absolute change: 3e-04 | Relative change: 1.1e-07
  Maximum item intercept parameter change: 0.001379
  Maximum item slope parameter change: 0.002355
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 55     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6965 | Absolute change: 3e-04 | Relative change: 1.1e-07
  Maximum item intercept parameter change: 0.001356
  Maximum item slope parameter change: 0.002308
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 56     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6962 | Absolute change: 3e-04 | Relative change: 1e-07
  Maximum item intercept parameter change: 0.001332
  Maximum item slope parameter change: 0.002262
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 57     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.696 | Absolute change: 2e-04 | Relative change: 1e-07
  Maximum item intercept parameter change: 0.001308
  Maximum item slope parameter change: 0.002218
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 58     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6958 | Absolute change: 2e-04 | Relative change: 1e-07
  Maximum item intercept parameter change: 0.001284
  Maximum item slope parameter change: 0.002175
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 59     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6955 | Absolute change: 2e-04 | Relative change: 9e-08
  Maximum item intercept parameter change: 0.00126
  Maximum item slope parameter change: 0.002133
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 60     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6953 | Absolute change: 2e-04 | Relative change: 9e-08
  Maximum item intercept parameter change: 0.001236
  Maximum item slope parameter change: 0.002092
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 61     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6951 | Absolute change: 2e-04 | Relative change: 9e-08
  Maximum item intercept parameter change: 0.001213
  Maximum item slope parameter change: 0.002053
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 62     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6949 | Absolute change: 2e-04 | Relative change: 8e-08
  Maximum item intercept parameter change: 0.00119
  Maximum item slope parameter change: 0.002014
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 63     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6947 | Absolute change: 2e-04 | Relative change: 8e-08
  Maximum item intercept parameter change: 0.001166
  Maximum item slope parameter change: 0.001976
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 64     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6945 | Absolute change: 2e-04 | Relative change: 8e-08
  Maximum item intercept parameter change: 0.001144
  Maximum item slope parameter change: 0.001939
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 65     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6943 | Absolute change: 2e-04 | Relative change: 7e-08
  Maximum item intercept parameter change: 0.001121
  Maximum item slope parameter change: 0.001903
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 66     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6942 | Absolute change: 2e-04 | Relative change: 7e-08
  Maximum item intercept parameter change: 0.001099
  Maximum item slope parameter change: 0.001868
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 67     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.694 | Absolute change: 2e-04 | Relative change: 7e-08
  Maximum item intercept parameter change: 0.001077
  Maximum item slope parameter change: 0.001833
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 68     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6938 | Absolute change: 2e-04 | Relative change: 7e-08
  Maximum item intercept parameter change: 0.001056
  Maximum item slope parameter change: 0.0018
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 69     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6937 | Absolute change: 2e-04 | Relative change: 6e-08
  Maximum item intercept parameter change: 0.001035
  Maximum item slope parameter change: 0.001766
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 70     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6935 | Absolute change: 1e-04 | Relative change: 6e-08
  Maximum item intercept parameter change: 0.001015
  Maximum item slope parameter change: 0.001734
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 71     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6934 | Absolute change: 1e-04 | Relative change: 6e-08
  Maximum item intercept parameter change: 0.000994
  Maximum item slope parameter change: 0.001702
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 72     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6933 | Absolute change: 1e-04 | Relative change: 6e-08
  Maximum item intercept parameter change: 0.000975
  Maximum item slope parameter change: 0.001671
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 73     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6931 | Absolute change: 1e-04 | Relative change: 5e-08
  Maximum item intercept parameter change: 0.000955
  Maximum item slope parameter change: 0.00164
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 74     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.693 | Absolute change: 1e-04 | Relative change: 5e-08
  Maximum item intercept parameter change: 0.000936
  Maximum item slope parameter change: 0.00161
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 75     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6929 | Absolute change: 1e-04 | Relative change: 5e-08
  Maximum item intercept parameter change: 0.000918
  Maximum item slope parameter change: 0.001581
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 76     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6927 | Absolute change: 1e-04 | Relative change: 5e-08
  Maximum item intercept parameter change: 0.000899
  Maximum item slope parameter change: 0.001552
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 77     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6926 | Absolute change: 1e-04 | Relative change: 5e-08
  Maximum item intercept parameter change: 0.000882
  Maximum item slope parameter change: 0.001524
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 78     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6925 | Absolute change: 1e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.000864
  Maximum item slope parameter change: 0.001496
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 79     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6924 | Absolute change: 1e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.000847
  Maximum item slope parameter change: 0.001469
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 80     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6923 | Absolute change: 1e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.00083
  Maximum item slope parameter change: 0.001442
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 81     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6922 | Absolute change: 1e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.000814
  Maximum item slope parameter change: 0.001416
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 82     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6921 | Absolute change: 1e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.000798
  Maximum item slope parameter change: 0.00139
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 83     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.692 | Absolute change: 1e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.000782
  Maximum item slope parameter change: 0.001365
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 84     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6919 | Absolute change: 1e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.000767
  Maximum item slope parameter change: 0.00134
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 85     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6919 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000751
  Maximum item slope parameter change: 0.001316
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 86     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6918 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000737
  Maximum item slope parameter change: 0.001292
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 87     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6917 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000722
  Maximum item slope parameter change: 0.001268
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 88     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6916 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000708
  Maximum item slope parameter change: 0.001245
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 89     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6916 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000694
  Maximum item slope parameter change: 0.001223
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 90     2020-09-04 13:05:02
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6915 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000681
  Maximum item slope parameter change: 0.0012
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 91     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6914 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000667
  Maximum item slope parameter change: 0.001179
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 92     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6914 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000654
  Maximum item slope parameter change: 0.001157
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 93     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6913 | Absolute change: 1e-04 | Relative change: 3e-08
  Maximum item intercept parameter change: 0.000642
  Maximum item slope parameter change: 0.001136
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 94     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6912 | Absolute change: 1e-04 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000629
  Maximum item slope parameter change: 0.001116
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 95     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6912 | Absolute change: 1e-04 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000617
  Maximum item slope parameter change: 0.001095
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 96     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6911 | Absolute change: 1e-04 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000605
  Maximum item slope parameter change: 0.001076
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 97     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6911 | Absolute change: 1e-04 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000593
  Maximum item slope parameter change: 0.001056
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 98     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.691 | Absolute change: 1e-04 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000582
  Maximum item slope parameter change: 0.001037
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 99     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.691 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.00057
  Maximum item slope parameter change: 0.001018
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 100     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6909 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000559
  Maximum item slope parameter change: 0.001
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 101     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6909 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000549
  Maximum item slope parameter change: 0.000982
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 102     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6908 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000538
  Maximum item slope parameter change: 0.000964
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 103     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6908 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000528
  Maximum item slope parameter change: 0.000946
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 104     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6907 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000518
  Maximum item slope parameter change: 0.000929
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 105     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6907 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000508
  Maximum item slope parameter change: 0.000912
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 106     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6907 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000498
  Maximum item slope parameter change: 0.000896
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 107     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6906 | Absolute change: 0 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000488
  Maximum item slope parameter change: 0.00088
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 108     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6906 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000479
  Maximum item slope parameter change: 0.000864
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 109     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6906 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.00047
  Maximum item slope parameter change: 0.000848
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 110     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6905 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000461
  Maximum item slope parameter change: 0.000833
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 111     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6905 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000452
  Maximum item slope parameter change: 0.000818
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 112     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6905 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000444
  Maximum item slope parameter change: 0.000803
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 113     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6904 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000435
  Maximum item slope parameter change: 0.000788
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 114     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6904 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000427
  Maximum item slope parameter change: 0.000774
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 115     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6904 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000419
  Maximum item slope parameter change: 0.00076
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 116     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6904 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000411
  Maximum item slope parameter change: 0.000746
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 117     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6903 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000403
  Maximum item slope parameter change: 0.000733
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 118     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6903 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000396
  Maximum item slope parameter change: 0.00072
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 119     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6903 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000388
  Maximum item slope parameter change: 0.000707
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 120     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6903 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000381
  Maximum item slope parameter change: 0.000694
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 121     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6902 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000374
  Maximum item slope parameter change: 0.000681
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 122     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6902 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000367
  Maximum item slope parameter change: 0.000669
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 123     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6902 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.00036
  Maximum item slope parameter change: 0.000657
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 124     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6902 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000353
  Maximum item slope parameter change: 0.000645
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 125     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6902 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000346
  Maximum item slope parameter change: 0.000633
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 126     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6901 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.00034
  Maximum item slope parameter change: 0.000622
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 127     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6901 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000333
  Maximum item slope parameter change: 0.000611
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 128     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6901 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000306
  Maximum item slope parameter change: 0.000594
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 129     2020-09-04 13:05:03
E Step
M Step Intercepts   |---
M Step Slopes       |--
  Deviance = 2450.6901 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000333
  Maximum item slope parameter change: 0.000589
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 130     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6901 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000296
  Maximum item slope parameter change: 0.000573
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 131     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6901 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 3e-04
  Maximum item slope parameter change: 0.000562
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 132     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.69 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000296
  Maximum item slope parameter change: 0.000551
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 133     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.69 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000291
  Maximum item slope parameter change: 0.000541
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 134     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.69 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000286
  Maximum item slope parameter change: 0.000531
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 135     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.69 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000281
  Maximum item slope parameter change: 0.000522
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 136     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.69 | Absolute change: 0 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000276
  Maximum item slope parameter change: 0.000512
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 137     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.69 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000272
  Maximum item slope parameter change: 0.000503
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 138     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.69 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000267
  Maximum item slope parameter change: 0.000494
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 139     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.69 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000262
  Maximum item slope parameter change: 0.000485
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 140     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000257
  Maximum item slope parameter change: 0.000476
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 141     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000253
  Maximum item slope parameter change: 0.000468
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 142     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000248
  Maximum item slope parameter change: 0.000459
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 143     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000244
  Maximum item slope parameter change: 0.000451
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 144     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.00024
  Maximum item slope parameter change: 0.000443
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 145     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000235
  Maximum item slope parameter change: 0.000435
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 146     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000231
  Maximum item slope parameter change: 0.000427
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 147     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000227
  Maximum item slope parameter change: 0.00042
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 148     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000223
  Maximum item slope parameter change: 0.000412
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 149     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000219
  Maximum item slope parameter change: 0.000405
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 150     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6899 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000215
  Maximum item slope parameter change: 0.000398
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 151     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000211
  Maximum item slope parameter change: 0.000391
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 152     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000207
  Maximum item slope parameter change: 0.000384
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 153     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000203
  Maximum item slope parameter change: 0.000377
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 154     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 2e-04
  Maximum item slope parameter change: 0.00037
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 155     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000196
  Maximum item slope parameter change: 0.000364
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 156     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000193
  Maximum item slope parameter change: 0.000357
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 157     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000189
  Maximum item slope parameter change: 0.000351
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 158     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000186
  Maximum item slope parameter change: 0.000345
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 159     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000182
  Maximum item slope parameter change: 0.000339
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 160     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000179
  Maximum item slope parameter change: 0.000333
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 161     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000176
  Maximum item slope parameter change: 0.000327
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 162     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000173
  Maximum item slope parameter change: 0.000321
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 163     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000169
  Maximum item slope parameter change: 0.000315
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 164     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000166
  Maximum item slope parameter change: 0.00031
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 165     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000163
  Maximum item slope parameter change: 0.000304
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 166     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.00016
  Maximum item slope parameter change: 0.000299
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 167     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000158
  Maximum item slope parameter change: 0.000294
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 168     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000155
  Maximum item slope parameter change: 0.000288
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 169     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000152
  Maximum item slope parameter change: 0.000283
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 170     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6898 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000149
  Maximum item slope parameter change: 0.000278
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 171     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000147
  Maximum item slope parameter change: 0.000273
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 172     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000144
  Maximum item slope parameter change: 0.000268
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 173     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000141
  Maximum item slope parameter change: 0.000264
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 174     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000139
  Maximum item slope parameter change: 0.000259
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 175     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000136
  Maximum item slope parameter change: 0.000255
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 176     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000134
  Maximum item slope parameter change: 0.00025
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 177     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000131
  Maximum item slope parameter change: 0.000246
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 178     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000129
  Maximum item slope parameter change: 0.000241
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 179     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000127
  Maximum item slope parameter change: 0.000237
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 180     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000124
  Maximum item slope parameter change: 0.000233
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 181     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000122
  Maximum item slope parameter change: 0.000229
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 182     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.00012
  Maximum item slope parameter change: 0.000225
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 183     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000118
  Maximum item slope parameter change: 0.000221
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 184     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000116
  Maximum item slope parameter change: 0.000217
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 185     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000114
  Maximum item slope parameter change: 0.000213
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 186     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000112
  Maximum item slope parameter change: 0.000209
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 187     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.00011
  Maximum item slope parameter change: 0.000205
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 188     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000108
  Maximum item slope parameter change: 0.000202
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 189     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000106
  Maximum item slope parameter change: 0.000198
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 190     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000104
  Maximum item slope parameter change: 0.000195
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 191     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000102
  Maximum item slope parameter change: 0.000191
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 192     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 1e-04
  Maximum item slope parameter change: 0.000188
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 193     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 9.8e-05
  Maximum item slope parameter change: 0.000185
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 194     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 9.7e-05
  Maximum item slope parameter change: 0.000181
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 195     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 9.5e-05
  Maximum item slope parameter change: 0.000178
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 196     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 9.3e-05
  Maximum item slope parameter change: 0.000175
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 197     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 9.2e-05
  Maximum item slope parameter change: 0.000172
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 198     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 9e-05
  Maximum item slope parameter change: 0.000169
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 199     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 8.8e-05
  Maximum item slope parameter change: 0.000166
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 200     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 8.7e-05
  Maximum item slope parameter change: 0.000163
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 201     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 8.5e-05
  Maximum item slope parameter change: 0.00016
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 202     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 8.4e-05
  Maximum item slope parameter change: 0.000157
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 203     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 8.2e-05
  Maximum item slope parameter change: 0.000154
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 204     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 8.1e-05
  Maximum item slope parameter change: 0.000152
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 205     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7.9e-05
  Maximum item slope parameter change: 0.000149
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 206     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7.8e-05
  Maximum item slope parameter change: 0.000146
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 207     2020-09-04 13:05:03
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7.7e-05
  Maximum item slope parameter change: 0.000144
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 208     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 1e-04
  Maximum item slope parameter change: 0.000145
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 209     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7.9e-05
  Maximum item slope parameter change: 0.000142
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 210     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7.9e-05
  Maximum item slope parameter change: 0.00014
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 211     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7.6e-05
  Maximum item slope parameter change: 0.000137
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 212     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7.4e-05
  Maximum item slope parameter change: 0.000135
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 213     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7.2e-05
  Maximum item slope parameter change: 0.000133
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 214     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7.1e-05
  Maximum item slope parameter change: 0.000131
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 215     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 6.9e-05
  Maximum item slope parameter change: 0.000128
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 216     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 6.8e-05
  Maximum item slope parameter change: 0.000126
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 217     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 6.6e-05
  Maximum item slope parameter change: 0.000124
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 218     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 6.5e-05
  Maximum item slope parameter change: 0.000122
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 219     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 6.4e-05
  Maximum item slope parameter change: 0.00012
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 220     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 6.2e-05
  Maximum item slope parameter change: 0.000118
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 221     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 6.1e-05
  Maximum item slope parameter change: 0.000115
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 222     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 6e-05
  Maximum item slope parameter change: 0.000113
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 223     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 5.9e-05
  Maximum item slope parameter change: 0.000111
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 224     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 5.8e-05
  Maximum item slope parameter change: 0.000109
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 225     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 5.6e-05
  Maximum item slope parameter change: 0.000107
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 226     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 5.5e-05
  Maximum item slope parameter change: 0.000105
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 227     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 5.4e-05
  Maximum item slope parameter change: 0.000104
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 228     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |--
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 5.3e-05
  Maximum item slope parameter change: 0.000102
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 229     2020-09-04 13:05:03
E Step
M Step Intercepts   |-
M Step Slopes       |-
  Deviance = 2450.6897 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 5.2e-05
  Maximum item slope parameter change: 1e-04
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Item Parameters
  xsi.index    xsi.label     est
1         1 Comfort_Cat1 -1.5341
2         2 Comfort_Cat2  2.8345
3         3 Comfort_Cat3  3.6851
4         4    Work_Cat1 -1.4212
5         5    Work_Cat2  0.7718
6         6    Work_Cat3  1.2461
7         7 Benefit_Cat1 -1.5484
8         8 Benefit_Cat2  0.9941
9         9 Benefit_Cat3  2.8386
...................................
Regression Coefficients
     [,1]
[1,]    0

Variance:
     [,1]
[1,]    1


EAP Reliability:
[1] 0.524

-----------------------------
Start:  2020-09-04 13:05:02
End:  2020-09-04 13:05:03 
Time difference of 0.7352257 secs

------------------------------------------------------------
TAM 3.1-45 (2019-03-18 16:53:26) 
sh: 1: cannot create /dev/null: Permission denied
R version 3.4.4 (2018-03-15) x86_64, linux-gnu | nodename=worker1 | login=unknown 

Date of Analysis: 2020-09-04 13:05:03 
Time difference of 0.7352257 secs
Computation time: 0.7352257 

Multidimensional Item Response Model in TAM 

IRT Model: GPCM
Call:
TAM::tam.mml.2pl(resp = dat, irtmodel = "GPCM")

------------------------------------------------------------
Number of iterations = 229 
Numeric integration with 21 integration points

Deviance = 2450.69 
Log likelihood = -1225.34 
Number of persons = 392 
Number of persons used = 392 
Number of items = 3 
Number of estimated parameters = 12 
    Item threshold parameters = 9 
    Item slope parameters = 3 
    Regression parameters = 0 
    Variance/covariance parameters = 0 

AIC = 2475  | penalty = 24    | AIC=-2*LL + 2*p 
AIC3 = 2487  | penalty = 36    | AIC3=-2*LL + 3*p 
BIC = 2522  | penalty = 71.66    | BIC=-2*LL + log(n)*p 
aBIC = 2484  | penalty = 33.46    | aBIC=-2*LL + log((n-2)/24)*p  (adjusted BIC) 
CAIC = 2534  | penalty = 83.66    | CAIC=-2*LL + [log(n)+1]*p  (consistent AIC) 
AICc = 2476  | penalty = 24.82    | AICc=-2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC) 

------------------------------------------------------------
EAP Reliability
[1] 0.524
------------------------------------------------------------
Covariances and Variances
     [,1]
[1,]    1
------------------------------------------------------------
Correlations and Standard Deviations (in the diagonal)
     [,1]
[1,]    1
------------------------------------------------------------
Regression Coefficients
     [,1]
[1,]    0
------------------------------------------------------------
Item Parameters -A*Xsi
           item   N     M xsi.item AXsi_.Cat1 AXsi_.Cat2 AXsi_.Cat3 B.Cat1.Dim1
Comfort Comfort 392 0.880    1.662     -1.534      1.300      4.986       1.276
Work       Work 392 1.278    0.199     -1.421     -0.649      0.597       0.375
Benefit Benefit 392 1.163    0.761     -1.548     -0.554      2.284       1.263
        B.Cat2.Dim1 B.Cat3.Dim1
Comfort       2.552       3.828
Work          0.749       1.124
Benefit       2.526       3.789

Item Parameters Xsi
                xsi se.xsi
Comfort_Cat1 -1.534  0.136
Comfort_Cat2  2.834  0.192
Comfort_Cat3  3.685  0.488
Work_Cat1    -1.421  0.148
Work_Cat2     0.772  0.110
Work_Cat3     1.246  0.185
Benefit_Cat1 -1.548  0.146
Benefit_Cat2  0.994  0.130
Benefit_Cat3  2.839  0.250

Item Parameters in IRT parameterization
     item alpha  beta tau.Cat1 tau.Cat2 tau.Cat3
1 Comfort 1.276 1.303   -2.505    0.919    1.586
2    Work 0.375 0.531   -4.324    1.529    2.795
3 Benefit 1.263 0.603   -1.829    0.184    1.644
Iteration in WLE/MLE estimation  1   | Maximal change  2.3853 
Iteration in WLE/MLE estimation  2   | Maximal change  0.9434 
Iteration in WLE/MLE estimation  3   | Maximal change  0.4087 
Iteration in WLE/MLE estimation  4   | Maximal change  0.0884 
Iteration in WLE/MLE estimation  5   | Maximal change  0.0249 
Iteration in WLE/MLE estimation  6   | Maximal change  0.0065 
Iteration in WLE/MLE estimation  7   | Maximal change  0.0017 
Iteration in WLE/MLE estimation  8   | Maximal change  5e-04 
Iteration in WLE/MLE estimation  9   | Maximal change  1e-04 
Iteration in WLE/MLE estimation  10   | Maximal change  0 
----
 WLE Reliability= 0.447 
Estimating: GPCM ... 
type = wle 
Estimation finished!
   theta error resPP.estimate resPP.SE nsteps
1 -0.476 0.971         -0.476    0.971     11
2 -0.090 0.973         -0.090    0.973     11
3  0.311 0.960          0.311    0.960     11
4  0.311 0.960          0.311    0.960     11
5  1.749 0.813          1.749    0.813     11
6 -1.513 1.032         -1.513    1.031     11

TAM documentation built on June 25, 2021, 5:13 p.m.