itemfit.sx2: S-X2 Item Fit Statistic for Dichotomous Data

Description Usage Arguments Details Value Note Author(s) References Examples

View source: R/itemfit.sx2.R

Description

Computes the S-X2 item fit statistic (Orlando & Thissen; 2000, 2003) for dichotomous data. Note that completely observed data is necessary for applying this function.

Usage

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itemfit.sx2(object, Eik_min=1, progress=TRUE)

## S3 method for class 'itemfit.sx2'
summary(object, ...)

## S3 method for class 'itemfit.sx2'
plot(x, ask=TRUE, ...)

Arguments

object

Object of class din, gdina, gdm, sirt::rasch.mml, sirt::smirt or TAM::tam.mml

x

Object of class din, gdina, gdm, sirt::rasch.mml, sirt::smirt or TAM::tam.mml

Eik_min

The minimum expected cell size for merging score groups.

progress

An optional logical indicating whether progress should be displayed.

ask

An optional logical indicating whether every item should be separately displayed.

...

Further arguments to be passed

Details

The S-X2 item fit statistic compares observed and expected proportions O_{jk} and E_{jk} for item j and each score group k and forms a chi-square distributed statistic

S-X_j^2=∑_{k=1}^{J-1} N_k \frac{ ( O_{jk} - E_{jk} )^2 } { E_{jk} ( 1 - E_{jk} ) }

The degrees of freedom are J-1-P_j where P_j denotes the number of estimated item parameters.

Value

A list with following entries

itemfit.stat

Data frame containing item fit statistics

itemtable

Data frame with expected and observed proportions for each score group and each item. Beside the ordinary p value, an adjusted p value obtained by correction due to multiple testing is provided (p.holm, see stats::p.adjust.

Note

This function does not work properly for multiple groups.

Author(s)

Alexander Robitzsch

References

Li, Y., & Rupp, A. A. (2011). Performance of the S-X2 statistic for full-information bifactor models. Educational and Psychological Measurement, 71, 986-1005.

Orlando, M., & Thissen, D. (2000). Likelihood-based item-fit indices for dichotomous item response theory models. Applied Psychological Measurement, 24, 50-64.

Orlando, M., & Thissen, D. (2003). Further investigation of the performance of S-X2: An item fit index for use with dichotomous item response theory models. Applied Psychological Measurement, 27, 289-298.

Zhang, B., & Stone, C. A. (2008). Evaluating item fit for multidimensional item response models. Educational and Psychological Measurement, 68, 181-196.

Examples

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#############################################################################
# EXAMPLE 1: Items with unequal item slopes
#############################################################################

# simulate data
set.seed(9871)
I <- 11
b <- seq( -1.5, 1.5, length=I)
a <- rep(1,I)
a[4] <- .4
N <- 1000
library(sirt)
dat <- sirt::sim.raschtype( theta=stats::rnorm(N), b=b, fixed.a=a)

#*** 1PL model estimated with gdm
mod1 <- CDM::gdm( dat, theta.k=seq(-6,6,len=21), irtmodel="1PL" )
summary(mod1)
# estimate item fit statistic
fitmod1 <- CDM::itemfit.sx2(mod1)
summary(fitmod1)
  ##       item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
  ##   1  I0001         1  4.173  9 0.900   0.464 0.000    10     1  1.000
  ##   2  I0002         2 12.365  9 0.193   1.374 0.019    10     1  1.000
  ##   3  I0003         3  6.158  9 0.724   0.684 0.000    10     1  1.000
  ##   4  I0004         4 37.759  9 0.000   4.195 0.057    10     1  0.000
  ##   5  I0005         5 12.307  9 0.197   1.367 0.019    10     1  1.000
  ##   6  I0006         6 19.358  9 0.022   2.151 0.034    10     1  0.223
  ##   7  I0007         7 14.610  9 0.102   1.623 0.025    10     1  0.818
  ##   8  I0008         8 15.568  9 0.076   1.730 0.027    10     1  0.688
  ##   9  I0009         9  8.471  9 0.487   0.941 0.000    10     1  1.000
  ##   10 I0010        10  8.330  9 0.501   0.926 0.000    10     1  1.000
  ##   11 I0011        11 12.351  9 0.194   1.372 0.019    10     1  1.000
  ##
  ##   -- Average Item Fit Statistics --
  ##   S-X2=13.768 | S-X2_df=1.53
# -> 4th item does not fit to the 1PL model

# plot item fit
plot(fitmod1)

## Not run: 
#*** 2PL model estimated with gdm
mod2 <- CDM::gdm( dat, theta.k=seq(-6,6,len=21), irtmodel="2PL", maxiter=100 )
summary(mod2)
# estimate item fit statistic
fitmod2 <- CDM::itemfit.sx2(mod2)
summary(fitmod2)
  ##       item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
  ##   1  I0001         1  4.083  8 0.850   0.510 0.000    10     2  1.000
  ##   2  I0002         2 13.580  8 0.093   1.697 0.026    10     2  0.747
  ##   3  I0003         3  6.236  8 0.621   0.780 0.000    10     2  1.000
  ##   4  I0004         4  6.049  8 0.642   0.756 0.000    10     2  1.000
  ##   5  I0005         5 12.792  8 0.119   1.599 0.024    10     2  0.834
  ##   6  I0006         6 14.397  8 0.072   1.800 0.028    10     2  0.648
  ##   7  I0007         7 15.046  8 0.058   1.881 0.030    10     2  0.639
  ##   [...]
  ##
  ##   -- Average Item Fit Statistics --
  ##   S-X2=10.22 | S-X2_df=1.277

#*** 1PL model estimation in smirt (sirt package)
Qmatrix <- matrix(1, nrow=I, ncol=1 )
mod1a <- sirt::smirt( dat, Qmatrix=Qmatrix )
summary(mod1a)
# item fit statistic
fitmod1a <- CDM::itemfit.sx2(mod1a)
summary(fitmod1a)

#*** 2PL model estimation in smirt (sirt package)
mod2a <- sirt::smirt( dat, Qmatrix=Qmatrix, est.a="2PL")
summary(mod2a)
# item fit statistic
fitmod2a <- CDM::itemfit.sx2(mod2a)
summary(fitmod2a)

#*** 1PL model estimated with rasch.mml2 (in sirt)
mod1b <- sirt::rasch.mml2(dat)
summary(mod1b)
# estimate item fit statistic
fitmod1b <- CDM::itemfit.sx2(mod1b)
summary(fitmod1b)

#*** 1PL estimated in TAM
library(TAM)
mod1c <- TAM::tam.mml( resp=dat )
summary(mod1c)
# item fit
summary( CDM::itemfit.sx2( mod1c) )
# conversion to mirt object
library(sirt)
library(mirt)
cmod1c <- sirt::tam2mirt( mod1c )
# item fit in mirt
mirt::itemfit( cmod1c$mirt )

#*** 2PL estimated in TAM
mod2c <- TAM::tam.mml.2pl( resp=dat )
summary(mod2c)
# item fit
summary( CDM::itemfit.sx2( mod2c) )
# conversion to mirt object and item fit in mirt
cmod2c <- sirt::tam2mirt( mod2c )
mirt::itemfit( cmod2c$mirt )

# estimation in mirt
mod1d <- mirt::mirt( dat, 1, itemtype="Rasch" )
mirt::itemfit( mod1d )    # compute item fit

#############################################################################
# EXAMPLE 2: Item fit statistics sim.dina dataset
#############################################################################

data(sim.dina, package="CDM")
data(sim.qmatrix, package="CDM")

#*** Model 1: DINA model (correctly specified model)
mod1 <- CDM::din( data=sim.dina, q.matrix=sim.qmatrix )
summary(mod1)
# item fit statistic
summary( CDM::itemfit.sx2( mod1 ) )
  ##   -- Average Item Fit Statistics --
  ##   S-X2=7.397 | S-X2_df=1.233

#*** Model 2: Mixed DINA/DINO model
#***  1th item is misspecified according to DINO rule
I <- ncol(CDM::sim.dina)
rule <- rep("DINA", I )
rule[1] <- "DINO"
mod2 <- CDM::din( data=CDM::sim.dina, q.matrix=CDM::sim.qmatrix, rule=rule)
summary(mod2)
# item fit statistic
summary( CDM::itemfit.sx2( mod2 ) )
  ##   -- Average Item Fit Statistics --
  ##   S-X2=9.925 | S-X2_df=1.654

#*** Model 3: Additive GDINA model
mod3 <- CDM::gdina( data=CDM::sim.dina, q.matrix=CDM::sim.qmatrix, rule="ACDM")
summary(mod3)
# item fit statistic
summary( CDM::itemfit.sx2( mod3 ) )
  ##   -- Average Item Fit Statistics --
  ##   S-X2=8.416 | S-X2_df=1.678

## End(Not run)

Example output

Loading required package: mvtnorm
**********************************
** CDM 7.0-12 (2018-11-06 16:23:12)      
** Cognitive Diagnostic Models  **
**********************************

- sirt 2.7-50 (2018-07-09 20:56:06)
......................................................................
Iteration 1     2018-11-20 23:03:10 
   Deviance=13311.7674
    Maximum item intercept parameter change= 0.263724  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.017082  
......................................................................
Iteration 2     2018-11-20 23:03:11 
   Deviance=13270.2742 | Deviance change=41.493258
    Maximum item intercept parameter change= 0.008282  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.005907  
......................................................................
Iteration 3     2018-11-20 23:03:11 
   Deviance=13269.355 | Deviance change=0.919113
    Maximum item intercept parameter change= 0.006068  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.004157  
......................................................................
Iteration 4     2018-11-20 23:03:11 
   Deviance=13268.895 | Deviance change=0.460063
    Maximum item intercept parameter change= 0.004178  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.002957  
......................................................................
Iteration 5     2018-11-20 23:03:11 
   Deviance=13268.6643 | Deviance change=0.230639
    Maximum item intercept parameter change= 0.002916  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.002112  
......................................................................
Iteration 6     2018-11-20 23:03:11 
   Deviance=13268.5472 | Deviance change=0.117097
    Maximum item intercept parameter change= 0.002054  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.001513  
......................................................................
Iteration 7     2018-11-20 23:03:11 
   Deviance=13268.4872 | Deviance change=0.060034
    Maximum item intercept parameter change= 0.001457  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.001086  
......................................................................
Iteration 8     2018-11-20 23:03:11 
   Deviance=13268.4562 | Deviance change=0.031028
    Maximum item intercept parameter change= 0.001038  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.000781  
......................................................................
Iteration 9     2018-11-20 23:03:11 
   Deviance=13268.44 | Deviance change=0.016158
    Maximum item intercept parameter change= 0.000742  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.000563  
......................................................................
Iteration 10     2018-11-20 23:03:11 
   Deviance=13268.4315 | Deviance change=0.008481
    Maximum item intercept parameter change= 0.000532  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.000406  
......................................................................
Iteration 11     2018-11-20 23:03:11 
   Deviance=13268.4271 | Deviance change=0.004493
    Maximum item intercept parameter change= 0.000382  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.000293  
......................................................................
Iteration 12     2018-11-20 23:03:11 
   Deviance=13268.4246 | Deviance change=0.002408
    Maximum item intercept parameter change= 0.000274  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.000211  
......................................................................
Iteration 13     2018-11-20 23:03:11 
   Deviance=13268.4233 | Deviance change=0.001311
    Maximum item intercept parameter change= 0.000197  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.000153  
......................................................................
Iteration 14     2018-11-20 23:03:11 
   Deviance=13268.4226 | Deviance change=0.000729
    Maximum item intercept parameter change= 0.000142  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 0.00011  
......................................................................
Iteration 15     2018-11-20 23:03:11 
   Deviance=13268.4222 | Deviance change=0.000416
    Maximum item intercept parameter change= 0.000103  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 8e-05  
......................................................................
Iteration 16     2018-11-20 23:03:11 
   Deviance=13268.4219 | Deviance change=0.000245
    Maximum item intercept parameter change= 7.4e-05  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 5.8e-05  
......................................................................
Iteration 17     2018-11-20 23:03:11 
   Deviance=13268.4218 | Deviance change=0.00015
    Maximum item intercept parameter change= 5.4e-05  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 4.3e-05  
......................................................................
Iteration 18     2018-11-20 23:03:11 
   Deviance=13268.4217 | Deviance change=9.6e-05
    Maximum item intercept parameter change= 3.9e-05  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 3.6e-05  
......................................................................
Iteration 19     2018-11-20 23:03:11 
   Deviance=13268.4216 | Deviance change=6.4e-05
    Maximum item intercept parameter change= 2.9e-05  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 3e-05  
......................................................................
Iteration 20     2018-11-20 23:03:11 
   Deviance=13268.4216 | Deviance change=4.4e-05
    Maximum item intercept parameter change= 2.1e-05  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 2.5e-05  
......................................................................
Iteration 21     2018-11-20 23:03:11 
   Deviance=13268.4216 | Deviance change=3.2e-05
    Maximum item intercept parameter change= 1.6e-05  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 2.1e-05  
......................................................................
Iteration 22     2018-11-20 23:03:11 
   Deviance=13268.4215 | Deviance change=2.3e-05
    Maximum item intercept parameter change= 1.3e-05  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 1.8e-05  
......................................................................
Iteration 23     2018-11-20 23:03:11 
   Deviance=13268.4215 | Deviance change=1.8e-05
    Maximum item intercept parameter change= 1.1e-05  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 1.6e-05  
......................................................................
Iteration 24     2018-11-20 23:03:11 
   Deviance=13268.4215 | Deviance change=1.3e-05
    Maximum item intercept parameter change= 9e-06  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 1.4e-05  
......................................................................
Iteration 25     2018-11-20 23:03:11 
   Deviance=13268.4215 | Deviance change=1e-05
    Maximum item intercept parameter change= 8e-06  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 1.2e-05  
......................................................................
Iteration 26     2018-11-20 23:03:11 
   Deviance=13268.4215 | Deviance change=8e-06
    Maximum item intercept parameter change= 7e-06  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 1e-05  
......................................................................
Iteration 27     2018-11-20 23:03:11 
   Deviance=13268.4215 | Deviance change=6e-06
    Maximum item intercept parameter change= 7e-06  
    Maximum item slope parameter change= 0  
    Maximum distribution parameter change= 9e-06  
----------------------------------- 
Start: 2018-11-20 23:03:10 
End: 2018-11-20 23:03:11 
Time difference of 0.4337292 secs
Difference: 0.4337292 
----------------------------------- 
-----------------------------------------------------------------------------
CDM 7.0-12 (2018-11-06 16:23:12) 

Date of Analysis: 2018-11-20 23:03:11 
Time difference of 0.4337292 secs
Computation Time: 0.4337292 

General Diagnostic Model 

    1000 Cases,  11 Items,  1 Group(s) , 1 Dimension(s)
    Log-linear Smoothing (up to 3 Moments)

-----------------------------------------------------------------------------
Number of iterations= 27

Deviance = 13268.42 | Log Likelihood = -6634.21
Number of persons = 1000
Number of estimated parameters = 14
  Number of estimated item parameters = 11
      11 Intercepts and 0 Slopes 
      0 centered intercepts and 0 centered slopes 
  Number of estimated distribution parameters = 3

AIC = 13296  | penalty = 28    | AIC = -2*LL + 2*p  
AICc = 13297  | penalty = 28.43    | AICc = -2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC)  
BIC = 13365  | penalty = 96.71    | BIC = -2*LL + log(n)*p   
CAIC = 13379  | penalty = 110.71    | CAIC = -2*LL + [log(n)+1]*p  (consistent AIC)   

-----------------------------------------------------------------------------
Trait Distribution

M Trait:
          F1
Group1 0.002

SD Trait:
          F1
Group1 0.864

Skewness Trait:
           F1
Group1 -0.018

Correlations Trait: 
Group 1 
   F1
F1  1

EAP Reliability:
        F1
[1,] 0.608
-----------------------------------------------------------------------------
Item Parameters 
   item    N     M b.Cat1 a.F1 itemfit.rmsea
1   I01 1000 0.799  1.579    1         0.008
2   I02 1000 0.723  1.104    1         0.012
3   I03 1000 0.696  0.955    1         0.004
4   I04 1000 0.566  0.305    1         0.065
5   I05 1000 0.575  0.348    1         0.005
6   I06 1000 0.509  0.039    1         0.016
7   I07 1000 0.449 -0.241    1         0.018
8   I08 1000 0.409 -0.430    1         0.018
9   I09 1000 0.347 -0.735    1         0.015
10  I10 1000 0.283 -1.076    1         0.015
11  I11 1000 0.215 -1.489    1         0.022

Mean of RMSEA item fit: 0.018 
|**********|
|----------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1   I01         1  4.171  9 0.900   0.463 0.000    10     1  1.000
2   I02         2 12.351  9 0.194   1.372 0.019    10     1  1.000
3   I03         3  6.156  9 0.724   0.684 0.000    10     1  1.000
4   I04         4 37.647  9 0.000   4.183 0.056    10     1  0.000
5   I05         5 12.298  9 0.197   1.366 0.019    10     1  1.000
6   I06         6 19.322  9 0.023   2.147 0.034    10     1  0.226
7   I07         7 14.621  9 0.102   1.625 0.025    10     1  0.815
8   I08         8 15.574  9 0.076   1.730 0.027    10     1  0.687
9   I09         9  8.460  9 0.489   0.940 0.000    10     1  1.000
10  I10        10  8.335  9 0.501   0.926 0.000    10     1  1.000
11  I11        11 12.357  9 0.194   1.373 0.019    10     1  1.000

-- Average Item Fit Statistics --
S-X2=13.754 | S-X2_df=1.528 
......................................................................
Iteration 1     2018-11-20 23:03:11 
   Deviance=13311.7674
    Maximum item intercept parameter change= 0.263724  
    Maximum item slope parameter change= 0.325981  
    Maximum distribution parameter change= 0.017082  
......................................................................
Iteration 2     2018-11-20 23:03:11 
   Deviance=13244.4229 | Deviance change=67.344498
    Maximum item intercept parameter change= 0.021441  
    Maximum item slope parameter change= 0.134591  
    Maximum distribution parameter change= 0.001047  
......................................................................
Iteration 3     2018-11-20 23:03:11 
   Deviance=13238.1738 | Deviance change=6.249156
    Maximum item intercept parameter change= 0.016849  
    Maximum item slope parameter change= 0.056865  
    Maximum distribution parameter change= 0.000536  
......................................................................
Iteration 4     2018-11-20 23:03:11 
   Deviance=13236.6791 | Deviance change=1.494612
    Maximum item intercept parameter change= 0.011106  
    Maximum item slope parameter change= 0.024156  
    Maximum distribution parameter change= 0.000755  
......................................................................
Iteration 5     2018-11-20 23:03:11 
   Deviance=13236.243 | Deviance change=0.436131
    Maximum item intercept parameter change= 0.007069  
    Maximum item slope parameter change= 0.012371  
    Maximum distribution parameter change= 0.00079  
......................................................................
Iteration 6     2018-11-20 23:03:11 
   Deviance=13236.0628 | Deviance change=0.180217
    Maximum item intercept parameter change= 0.004638  
    Maximum item slope parameter change= 0.008663  
    Maximum distribution parameter change= 0.00077  
......................................................................
Iteration 7     2018-11-20 23:03:11 
   Deviance=13235.9552 | Deviance change=0.10757
    Maximum item intercept parameter change= 0.003211  
    Maximum item slope parameter change= 0.006452  
    Maximum distribution parameter change= 0.000735  
......................................................................
Iteration 8     2018-11-20 23:03:11 
   Deviance=13235.8752 | Deviance change=0.080063
    Maximum item intercept parameter change= 0.002358  
    Maximum item slope parameter change= 0.005076  
    Maximum distribution parameter change= 0.000703  
......................................................................
Iteration 9     2018-11-20 23:03:11 
   Deviance=13235.8098 | Deviance change=0.065339
    Maximum item intercept parameter change= 0.00183  
    Maximum item slope parameter change= 0.004176  
    Maximum distribution parameter change= 0.000663  
......................................................................
Iteration 10     2018-11-20 23:03:11 
   Deviance=13235.7547 | Deviance change=0.055143
    Maximum item intercept parameter change= 0.001488  
    Maximum item slope parameter change= 0.003555  
    Maximum distribution parameter change= 0.00062  
......................................................................
Iteration 11     2018-11-20 23:03:11 
   Deviance=13235.7076 | Deviance change=0.047094
    Maximum item intercept parameter change= 0.001256  
    Maximum item slope parameter change= 0.003104  
    Maximum distribution parameter change= 0.000578  
......................................................................
Iteration 12     2018-11-20 23:03:11 
   Deviance=13235.6672 | Deviance change=0.040383
    Maximum item intercept parameter change= 0.001091  
    Maximum item slope parameter change= 0.002759  
    Maximum distribution parameter change= 0.000536  
......................................................................
Iteration 13     2018-11-20 23:03:11 
   Deviance=13235.6325 | Deviance change=0.034664
    Maximum item intercept parameter change= 0.000966  
    Maximum item slope parameter change= 0.002483  
    Maximum distribution parameter change= 0.000497  
......................................................................
Iteration 14     2018-11-20 23:03:11 
   Deviance=13235.6028 | Deviance change=0.029751
    Maximum item intercept parameter change= 0.000868  
    Maximum item slope parameter change= 0.002254  
    Maximum distribution parameter change= 0.000459  
......................................................................
Iteration 15     2018-11-20 23:03:11 
   Deviance=13235.5773 | Deviance change=0.025518
    Maximum item intercept parameter change= 0.000788  
    Maximum item slope parameter change= 0.002057  
    Maximum distribution parameter change= 0.000424  
......................................................................
Iteration 16     2018-11-20 23:03:11 
   Deviance=13235.5554 | Deviance change=0.021868
    Maximum item intercept parameter change= 0.00072  
    Maximum item slope parameter change= 0.001884  
    Maximum distribution parameter change= 0.000391  
......................................................................
Iteration 17     2018-11-20 23:03:12 
   Deviance=13235.5367 | Deviance change=0.018723
    Maximum item intercept parameter change= 0.000661  
    Maximum item slope parameter change= 0.00173  
    Maximum distribution parameter change= 0.00036  
......................................................................
Iteration 18     2018-11-20 23:03:12 
   Deviance=13235.5207 | Deviance change=0.016015
    Maximum item intercept parameter change= 0.000608  
    Maximum item slope parameter change= 0.001591  
    Maximum distribution parameter change= 0.000331  
......................................................................
Iteration 19     2018-11-20 23:03:12 
   Deviance=13235.507 | Deviance change=0.013685
    Maximum item intercept parameter change= 0.000561  
    Maximum item slope parameter change= 0.001463  
    Maximum distribution parameter change= 0.000305  
......................................................................
Iteration 20     2018-11-20 23:03:12 
   Deviance=13235.4953 | Deviance change=0.011683
    Maximum item intercept parameter change= 0.000518  
    Maximum item slope parameter change= 0.001347  
    Maximum distribution parameter change= 0.00028  
......................................................................
Iteration 21     2018-11-20 23:03:12 
   Deviance=13235.4853 | Deviance change=0.009965
    Maximum item intercept parameter change= 0.000478  
    Maximum item slope parameter change= 0.001239  
    Maximum distribution parameter change= 0.000258  
......................................................................
Iteration 22     2018-11-20 23:03:12 
   Deviance=13235.4768 | Deviance change=0.008492
    Maximum item intercept parameter change= 0.000442  
    Maximum item slope parameter change= 0.00114  
    Maximum distribution parameter change= 0.000237  
......................................................................
Iteration 23     2018-11-20 23:03:12 
   Deviance=13235.4696 | Deviance change=0.007232
    Maximum item intercept parameter change= 0.000409  
    Maximum item slope parameter change= 0.001048  
    Maximum distribution parameter change= 0.000217  
......................................................................
Iteration 24     2018-11-20 23:03:12 
   Deviance=13235.4635 | Deviance change=0.006154
    Maximum item intercept parameter change= 0.000378  
    Maximum item slope parameter change= 0.000964  
    Maximum distribution parameter change= 0.000199  
......................................................................
Iteration 25     2018-11-20 23:03:12 
   Deviance=13235.4582 | Deviance change=0.005233
    Maximum item intercept parameter change= 0.000349  
    Maximum item slope parameter change= 0.000886  
    Maximum distribution parameter change= 0.000183  
......................................................................
Iteration 26     2018-11-20 23:03:12 
   Deviance=13235.4538 | Deviance change=0.004447
    Maximum item intercept parameter change= 0.000323  
    Maximum item slope parameter change= 0.000813  
    Maximum distribution parameter change= 0.000168  
......................................................................
Iteration 27     2018-11-20 23:03:12 
   Deviance=13235.45 | Deviance change=0.003777
    Maximum item intercept parameter change= 0.000298  
    Maximum item slope parameter change= 0.000746  
    Maximum distribution parameter change= 0.000154  
......................................................................
Iteration 28     2018-11-20 23:03:12 
   Deviance=13235.4468 | Deviance change=0.003206
    Maximum item intercept parameter change= 0.000276  
    Maximum item slope parameter change= 0.000685  
    Maximum distribution parameter change= 0.000141  
......................................................................
Iteration 29     2018-11-20 23:03:12 
   Deviance=13235.4441 | Deviance change=0.002721
    Maximum item intercept parameter change= 0.000255  
    Maximum item slope parameter change= 0.000628  
    Maximum distribution parameter change= 0.000129  
......................................................................
Iteration 30     2018-11-20 23:03:12 
   Deviance=13235.4418 | Deviance change=0.002307
    Maximum item intercept parameter change= 0.000236  
    Maximum item slope parameter change= 0.000575  
    Maximum distribution parameter change= 0.000119  
......................................................................
Iteration 31     2018-11-20 23:03:12 
   Deviance=13235.4398 | Deviance change=0.001956
    Maximum item intercept parameter change= 0.000218  
    Maximum item slope parameter change= 0.000526  
    Maximum distribution parameter change= 0.000109  
......................................................................
Iteration 32     2018-11-20 23:03:12 
   Deviance=13235.4382 | Deviance change=0.001658
    Maximum item intercept parameter change= 0.000202  
    Maximum item slope parameter change= 0.000482  
    Maximum distribution parameter change= 1e-04  
......................................................................
Iteration 33     2018-11-20 23:03:12 
   Deviance=13235.4367 | Deviance change=0.001405
    Maximum item intercept parameter change= 0.000186  
    Maximum item slope parameter change= 0.00044  
    Maximum distribution parameter change= 9.1e-05  
......................................................................
Iteration 34     2018-11-20 23:03:12 
   Deviance=13235.4356 | Deviance change=0.001191
    Maximum item intercept parameter change= 0.000172  
    Maximum item slope parameter change= 0.000405  
    Maximum distribution parameter change= 8.4e-05  
......................................................................
Iteration 35     2018-11-20 23:03:12 
   Deviance=13235.4345 | Deviance change=0.001009
    Maximum item intercept parameter change= 0.00016  
    Maximum item slope parameter change= 0.000375  
    Maximum distribution parameter change= 7.7e-05  
......................................................................
Iteration 36     2018-11-20 23:03:12 
   Deviance=13235.4337 | Deviance change=0.000854
    Maximum item intercept parameter change= 0.000148  
    Maximum item slope parameter change= 0.000346  
    Maximum distribution parameter change= 7e-05  
......................................................................
Iteration 37     2018-11-20 23:03:12 
   Deviance=13235.433 | Deviance change=0.000723
    Maximum item intercept parameter change= 0.000137  
    Maximum item slope parameter change= 0.00032  
    Maximum distribution parameter change= 6.4e-05  
......................................................................
Iteration 38     2018-11-20 23:03:12 
   Deviance=13235.4324 | Deviance change=0.000613
    Maximum item intercept parameter change= 0.000127  
    Maximum item slope parameter change= 0.000296  
    Maximum distribution parameter change= 5.9e-05  
......................................................................
Iteration 39     2018-11-20 23:03:12 
   Deviance=13235.4318 | Deviance change=0.000519
    Maximum item intercept parameter change= 0.000118  
    Maximum item slope parameter change= 0.000274  
    Maximum distribution parameter change= 5.4e-05  
......................................................................
Iteration 40     2018-11-20 23:03:12 
   Deviance=13235.4314 | Deviance change=0.00044
    Maximum item intercept parameter change= 0.000109  
    Maximum item slope parameter change= 0.000254  
    Maximum distribution parameter change= 4.9e-05  
......................................................................
Iteration 41     2018-11-20 23:03:12 
   Deviance=13235.431 | Deviance change=0.000372
    Maximum item intercept parameter change= 0.000102  
    Maximum item slope parameter change= 0.000235  
    Maximum distribution parameter change= 4.5e-05  
......................................................................
Iteration 42     2018-11-20 23:03:12 
   Deviance=13235.4307 | Deviance change=0.000315
    Maximum item intercept parameter change= 9.4e-05  
    Maximum item slope parameter change= 0.000217  
    Maximum distribution parameter change= 4.1e-05  
......................................................................
Iteration 43     2018-11-20 23:03:12 
   Deviance=13235.4304 | Deviance change=0.000267
    Maximum item intercept parameter change= 8.8e-05  
    Maximum item slope parameter change= 0.000201  
    Maximum distribution parameter change= 3.8e-05  
......................................................................
Iteration 44     2018-11-20 23:03:12 
   Deviance=13235.4302 | Deviance change=0.000227
    Maximum item intercept parameter change= 8.2e-05  
    Maximum item slope parameter change= 0.000187  
    Maximum distribution parameter change= 3.4e-05  
......................................................................
Iteration 45     2018-11-20 23:03:12 
   Deviance=13235.43 | Deviance change=0.000192
    Maximum item intercept parameter change= 7.6e-05  
    Maximum item slope parameter change= 0.000173  
    Maximum distribution parameter change= 3.2e-05  
......................................................................
Iteration 46     2018-11-20 23:03:12 
   Deviance=13235.4299 | Deviance change=0.000163
    Maximum item intercept parameter change= 7.1e-05  
    Maximum item slope parameter change= 0.000161  
    Maximum distribution parameter change= 2.9e-05  
......................................................................
Iteration 47     2018-11-20 23:03:12 
   Deviance=13235.4297 | Deviance change=0.000138
    Maximum item intercept parameter change= 6.7e-05  
    Maximum item slope parameter change= 0.000149  
    Maximum distribution parameter change= 2.7e-05  
......................................................................
Iteration 48     2018-11-20 23:03:12 
   Deviance=13235.4296 | Deviance change=0.000117
    Maximum item intercept parameter change= 6.2e-05  
    Maximum item slope parameter change= 0.000139  
    Maximum distribution parameter change= 2.5e-05  
......................................................................
Iteration 49     2018-11-20 23:03:12 
   Deviance=13235.4295 | Deviance change=1e-04
    Maximum item intercept parameter change= 5.8e-05  
    Maximum item slope parameter change= 0.000129  
    Maximum distribution parameter change= 2.4e-05  
......................................................................
Iteration 50     2018-11-20 23:03:12 
   Deviance=13235.4294 | Deviance change=8.5e-05
    Maximum item intercept parameter change= 5.5e-05  
    Maximum item slope parameter change= 0.00012  
    Maximum distribution parameter change= 2.2e-05  
......................................................................
Iteration 51     2018-11-20 23:03:12 
   Deviance=13235.4294 | Deviance change=7.2e-05
    Maximum item intercept parameter change= 5.1e-05  
    Maximum item slope parameter change= 0.000112  
    Maximum distribution parameter change= 2.1e-05  
......................................................................
Iteration 52     2018-11-20 23:03:12 
   Deviance=13235.4293 | Deviance change=6.1e-05
    Maximum item intercept parameter change= 4.8e-05  
    Maximum item slope parameter change= 0.000105  
    Maximum distribution parameter change= 1.9e-05  
......................................................................
Iteration 53     2018-11-20 23:03:12 
   Deviance=13235.4292 | Deviance change=5.2e-05
    Maximum item intercept parameter change= 4.6e-05  
    Maximum item slope parameter change= 9.8e-05  
    Maximum distribution parameter change= 1.8e-05  
......................................................................
Iteration 54     2018-11-20 23:03:12 
   Deviance=13235.4292 | Deviance change=4.4e-05
    Maximum item intercept parameter change= 4.3e-05  
    Maximum item slope parameter change= 9.2e-05  
    Maximum distribution parameter change= 1.7e-05  
......................................................................
Iteration 55     2018-11-20 23:03:12 
   Deviance=13235.4292 | Deviance change=3.8e-05
    Maximum item intercept parameter change= 4.1e-05  
    Maximum item slope parameter change= 8.6e-05  
    Maximum distribution parameter change= 1.6e-05  
......................................................................
Iteration 56     2018-11-20 23:03:12 
   Deviance=13235.4291 | Deviance change=3.2e-05
    Maximum item intercept parameter change= 3.8e-05  
    Maximum item slope parameter change= 8.1e-05  
    Maximum distribution parameter change= 1.5e-05  
......................................................................
Iteration 57     2018-11-20 23:03:12 
   Deviance=13235.4291 | Deviance change=2.8e-05
    Maximum item intercept parameter change= 3.6e-05  
    Maximum item slope parameter change= 7.6e-05  
    Maximum distribution parameter change= 1.4e-05  
......................................................................
Iteration 58     2018-11-20 23:03:12 
   Deviance=13235.4291 | Deviance change=2.4e-05
    Maximum item intercept parameter change= 3.5e-05  
    Maximum item slope parameter change= 7.1e-05  
    Maximum distribution parameter change= 1.3e-05  
......................................................................
Iteration 59     2018-11-20 23:03:12 
   Deviance=13235.4291 | Deviance change=2e-05
    Maximum item intercept parameter change= 3.3e-05  
    Maximum item slope parameter change= 6.7e-05  
    Maximum distribution parameter change= 1.2e-05  
......................................................................
Iteration 60     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=1.7e-05
    Maximum item intercept parameter change= 3.1e-05  
    Maximum item slope parameter change= 6.3e-05  
    Maximum distribution parameter change= 1.2e-05  
......................................................................
Iteration 61     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=1.5e-05
    Maximum item intercept parameter change= 3e-05  
    Maximum item slope parameter change= 6e-05  
    Maximum distribution parameter change= 1.1e-05  
......................................................................
Iteration 62     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=1.3e-05
    Maximum item intercept parameter change= 2.9e-05  
    Maximum item slope parameter change= 5.7e-05  
    Maximum distribution parameter change= 1e-05  
......................................................................
Iteration 63     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=1.1e-05
    Maximum item intercept parameter change= 2.8e-05  
    Maximum item slope parameter change= 5.4e-05  
    Maximum distribution parameter change= 1e-05  
......................................................................
Iteration 64     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=9e-06
    Maximum item intercept parameter change= 2.6e-05  
    Maximum item slope parameter change= 5.1e-05  
    Maximum distribution parameter change= 9e-06  
......................................................................
Iteration 65     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=8e-06
    Maximum item intercept parameter change= 2.5e-05  
    Maximum item slope parameter change= 4.9e-05  
    Maximum distribution parameter change= 9e-06  
......................................................................
Iteration 66     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=7e-06
    Maximum item intercept parameter change= 2.5e-05  
    Maximum item slope parameter change= 4.6e-05  
    Maximum distribution parameter change= 9e-06  
......................................................................
Iteration 67     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=6e-06
    Maximum item intercept parameter change= 2.4e-05  
    Maximum item slope parameter change= 4.4e-05  
    Maximum distribution parameter change= 8e-06  
......................................................................
Iteration 68     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=5e-06
    Maximum item intercept parameter change= 2.3e-05  
    Maximum item slope parameter change= 4.2e-05  
    Maximum distribution parameter change= 8e-06  
......................................................................
Iteration 69     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=5e-06
    Maximum item intercept parameter change= 2.2e-05  
    Maximum item slope parameter change= 4.1e-05  
    Maximum distribution parameter change= 8e-06  
......................................................................
Iteration 70     2018-11-20 23:03:12 
   Deviance=13235.429 | Deviance change=4e-06
    Maximum item intercept parameter change= 2.2e-05  
    Maximum item slope parameter change= 3.9e-05  
    Maximum distribution parameter change= 7e-06  
......................................................................
Iteration 71     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=4e-06
    Maximum item intercept parameter change= 2.1e-05  
    Maximum item slope parameter change= 3.7e-05  
    Maximum distribution parameter change= 7e-06  
......................................................................
Iteration 72     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=3e-06
    Maximum item intercept parameter change= 2e-05  
    Maximum item slope parameter change= 3.6e-05  
    Maximum distribution parameter change= 7e-06  
......................................................................
Iteration 73     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=3e-06
    Maximum item intercept parameter change= 2e-05  
    Maximum item slope parameter change= 3.5e-05  
    Maximum distribution parameter change= 7e-06  
......................................................................
Iteration 74     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=2e-06
    Maximum item intercept parameter change= 1.9e-05  
    Maximum item slope parameter change= 3.4e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 75     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=2e-06
    Maximum item intercept parameter change= 1.9e-05  
    Maximum item slope parameter change= 3.3e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 76     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=2e-06
    Maximum item intercept parameter change= 1.9e-05  
    Maximum item slope parameter change= 3.2e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 77     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=2e-06
    Maximum item intercept parameter change= 1.8e-05  
    Maximum item slope parameter change= 3.1e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 78     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.8e-05  
    Maximum item slope parameter change= 3e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 79     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.8e-05  
    Maximum item slope parameter change= 2.9e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 80     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.7e-05  
    Maximum item slope parameter change= 2.9e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 81     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.7e-05  
    Maximum item slope parameter change= 2.8e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 82     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.7e-05  
    Maximum item slope parameter change= 2.7e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 83     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.7e-05  
    Maximum item slope parameter change= 2.7e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 84     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.7e-05  
    Maximum item slope parameter change= 2.6e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 85     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.6e-05  
    Maximum item slope parameter change= 2.6e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 86     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.6e-05  
    Maximum item slope parameter change= 2.6e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 87     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.6e-05  
    Maximum item slope parameter change= 2.5e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 88     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=1e-06
    Maximum item intercept parameter change= 1.6e-05  
    Maximum item slope parameter change= 2.5e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 89     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.6e-05  
    Maximum item slope parameter change= 2.5e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 90     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.6e-05  
    Maximum item slope parameter change= 2.4e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 91     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.6e-05  
    Maximum item slope parameter change= 2.4e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 92     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.5e-05  
    Maximum item slope parameter change= 2.4e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 93     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.5e-05  
    Maximum item slope parameter change= 2.4e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 94     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.5e-05  
    Maximum item slope parameter change= 2.4e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 95     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.5e-05  
    Maximum item slope parameter change= 2.4e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 96     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.5e-05  
    Maximum item slope parameter change= 2.4e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 97     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.5e-05  
    Maximum item slope parameter change= 2.4e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 98     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.5e-05  
    Maximum item slope parameter change= 2.3e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 99     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.5e-05  
    Maximum item slope parameter change= 2.3e-05  
    Maximum distribution parameter change= 6e-06  
......................................................................
Iteration 100     2018-11-20 23:03:12 
   Deviance=13235.4289 | Deviance change=0
    Maximum item intercept parameter change= 1.5e-05  
    Maximum item slope parameter change= 2.3e-05  
    Maximum distribution parameter change= 6e-06  
----------------------------------- 
Start: 2018-11-20 23:03:11 
End: 2018-11-20 23:03:12 
Time difference of 0.8328321 secs
Difference: 0.8328321 
----------------------------------- 
-----------------------------------------------------------------------------
CDM 7.0-12 (2018-11-06 16:23:12) 

Date of Analysis: 2018-11-20 23:03:12 
Time difference of 0.8328321 secs
Computation Time: 0.8328321 

General Diagnostic Model 

    1000 Cases,  11 Items,  1 Group(s) , 1 Dimension(s)
    Log-linear Smoothing (up to 3 Moments)

-----------------------------------------------------------------------------
Number of iterations= 100
Maximum number of iterations was reached.

Deviance = 13235.43 | Log Likelihood = -6617.71
Number of persons = 1000
Number of estimated parameters = 25
  Number of estimated item parameters = 22
      11 Intercepts and 11 Slopes 
      0 centered intercepts and 0 centered slopes 
  Number of estimated distribution parameters = 3

AIC = 13285  | penalty = 50    | AIC = -2*LL + 2*p  
AICc = 13287  | penalty = 51.33    | AICc = -2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC)  
BIC = 13408  | penalty = 172.69    | BIC = -2*LL + log(n)*p   
CAIC = 13433  | penalty = 197.69    | CAIC = -2*LL + [log(n)+1]*p  (consistent AIC)   

-----------------------------------------------------------------------------
Trait Distribution

M Trait:
           F1
Group1 -0.015

SD Trait:
          F1
Group1 0.942

Skewness Trait:
           F1
Group1 -0.289

Correlations Trait: 
Group 1 
   F1
F1  1

EAP Reliability:
        F1
[1,] 0.621
-----------------------------------------------------------------------------
Item Parameters 
   item    N     M b.Cat1  a.F1 itemfit.rmsea
1   I01 1000 0.799  1.607 0.953         0.005
2   I02 1000 0.723  1.118 0.931         0.013
3   I03 1000 0.696  0.964 0.919         0.002
4   I04 1000 0.566  0.281 0.434         0.008
5   I05 1000 0.575  0.356 0.923         0.007
6   I06 1000 0.509  0.046 0.792         0.009
7   I07 1000 0.449 -0.248 1.111         0.009
8   I08 1000 0.409 -0.448 1.120         0.009
9   I09 1000 0.347 -0.731 0.949         0.013
10  I10 1000 0.283 -1.116 1.097         0.012
11  I11 1000 0.215 -1.601 1.236         0.009

Mean of RMSEA item fit: 0.009 
|**********|
|----------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1   I01         1  4.098  8 0.848   0.512 0.000    10     2  1.000
2   I02         2 13.465  8 0.097   1.683 0.026    10     2  0.775
3   I03         3  6.204  8 0.624   0.776 0.000    10     2  1.000
4   I04         4  6.162  8 0.629   0.770 0.000    10     2  1.000
5   I05         5 12.697  8 0.123   1.587 0.024    10     2  0.859
6   I06         6 14.412  8 0.072   1.802 0.028    10     2  0.645
7   I07         7 14.898  8 0.061   1.862 0.029    10     2  0.623
8   I08         8 15.132  8 0.057   1.892 0.030    10     2  0.623
9   I09         9  7.520  8 0.482   0.940 0.000    10     2  1.000
10  I10        10  7.396  8 0.495   0.925 0.000    10     2  1.000
11  I11        11 10.250  8 0.248   1.281 0.017    10     2  1.000

-- Average Item Fit Statistics --
S-X2=10.203 | S-X2_df=1.275 
...........................................................
Iteration 1     2018-11-20 23:03:12 
  M steps b parameter   |---  3 Step(s) 
   Deviance=13302.6665
    Maximum b parameter change=0.229114
    Maximum a parameter change=0
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  0.935 
 Correlations   
...........................................................
Iteration 2     2018-11-20 23:03:12 
  M steps b parameter   |--  2 Step(s) 
   Deviance=13270.371 | Deviance change=32.295407
    Maximum b parameter change=0.009345
    Maximum a parameter change=0
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  0.913 
 Correlations   
...........................................................
Iteration 3     2018-11-20 23:03:12 
  M steps b parameter   |--  2 Step(s) 
   Deviance=13269.3987 | Deviance change=0.972346
    Maximum b parameter change=0.006531
    Maximum a parameter change=0
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  0.899 
 Correlations   
...........................................................
Iteration 4     2018-11-20 23:03:12 
  M steps b parameter   |--  2 Step(s) 
   Deviance=13268.917 | Deviance change=0.481664
    Maximum b parameter change=0.004437
    Maximum a parameter change=0
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  0.889 
 Correlations   
...........................................................
Iteration 5     2018-11-20 23:03:12 
  M steps b parameter   |--  2 Step(s) 
   Deviance=13268.6768 | Deviance change=0.2402
    Maximum b parameter change=0.003055
    Maximum a parameter change=0
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  0.882 
 Correlations   
...........................................................
Iteration 6     2018-11-20 23:03:12 
  M steps b parameter   |--  2 Step(s) 
   Deviance=13268.5555 | Deviance change=0.121291
    Maximum b parameter change=0.002124
    Maximum a parameter change=0
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  0.877 
 Correlations   
...........................................................
Iteration 7     2018-11-20 23:03:12 
  M steps b parameter   |--  2 Step(s) 
   Deviance=13268.4938 | Deviance change=0.06179
    Maximum b parameter change=0.001489
    Maximum a parameter change=0
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  0.873 
 Correlations   
...........................................................
Iteration 8     2018-11-20 23:03:12 
  M steps b parameter   |--  2 Step(s) 
   Deviance=13268.4621 | Deviance change=0.031676
    Maximum b parameter change=0.00105
    Maximum a parameter change=0
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  0.871 
 Correlations   
...........................................................
Iteration 9     2018-11-20 23:03:12 
  M steps b parameter   |-  1 Step(s) 
   Deviance=13268.4458 | Deviance change=0.016311
    Maximum b parameter change=0.000744
    Maximum a parameter change=0
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  0.869 
 Correlations   
*********************************
Item Parameters
   item    N     p b.Dim1 a.Dim1 c d
1   I01 1000 0.799 -1.583      1 0 1
2   I02 1000 0.723 -1.108      1 0 1
3   I03 1000 0.696 -0.959      1 0 1
4   I04 1000 0.566 -0.309      1 0 1
5   I05 1000 0.575 -0.351      1 0 1
6   I06 1000 0.509 -0.042      1 0 1
7   I07 1000 0.449  0.238      1 0 1
8   I08 1000 0.409  0.428      1 0 1
9   I09 1000 0.347  0.733      1 0 1
10  I10 1000 0.283  1.074      1 0 1
11  I11 1000 0.215  1.488      1 0 1
*********************************
EAP Reliability= 0.609 
-----------------------------------------------------------------
sirt 2.7-50 (2018-07-09 20:56:06) 

Date of Analysis: 2018-11-20 23:03:12 
Time difference of 0.1339865 secs
Computation Time: 0.1339865 

  Function 'smirt' 
   Noncompensatory item response model

    1000 Cases,  11 Items,  1 Dimension(s)
-----------------------------------------------------------------
Number of iterations= 9 
Deviance= 13268.45  | Log Likelihood= -6634.22 
Number of persons= 1000 
Number of estimated parameters= 12 
  Number of estimated item parameters= 11 
               b parameters= 11 
               a parameters= 0 
               c parameters= 0 
               d parameters= 0 
            mu.i parameters= 0 
  Number of estimated distribution parameters= 1 
               Means= 0 
               Covariances= 1 
AIC= 13292.45  | penalty= 24    | AIC=-2*LL + 2*p  
AICc= 13292.76  | penalty= 24.32    | AICc=-2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC)
BIC= 13351.34  | penalty= 82.89    | BIC=-2*LL + log(n)*p  
CAIC= 13363.34  | penalty= 94.89   | CAIC=-2*LL + [log(n)+1]*p  (consistent AIC)

-----------------------------------------------------------------

M Trait:
V1 
 0 

SD Trait:
[1] 0.869

Correlations Trait: 
     [,1]
[1,]    1

EAP Reliability:
        V1
[1,] 0.609
-----------------------------------------------------------------
Item Parameters 
   item    N     p b.Dim1 a.Dim1 c d
1   I01 1000 0.799 -1.583      1 0 1
2   I02 1000 0.723 -1.108      1 0 1
3   I03 1000 0.696 -0.959      1 0 1
4   I04 1000 0.566 -0.309      1 0 1
5   I05 1000 0.575 -0.351      1 0 1
6   I06 1000 0.509 -0.042      1 0 1
7   I07 1000 0.449  0.238      1 0 1
8   I08 1000 0.409  0.428      1 0 1
9   I09 1000 0.347  0.733      1 0 1
10  I10 1000 0.283  1.074      1 0 1
11  I11 1000 0.215  1.488      1 0 1
|**********|
|----------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1   I01         1  4.172  9 0.900   0.464 0.000    10     1  1.000
2   I02         2 12.362  9 0.194   1.374 0.019    10     1  1.000
3   I03         3  6.158  9 0.724   0.684 0.000    10     1  1.000
4   I04         4 37.754  9 0.000   4.195 0.057    10     1  0.000
5   I05         5 12.306  9 0.197   1.367 0.019    10     1  1.000
6   I06         6 19.361  9 0.022   2.151 0.034    10     1  0.223
7   I07         7 14.609  9 0.102   1.623 0.025    10     1  0.818
8   I08         8 15.569  9 0.076   1.730 0.027    10     1  0.688
9   I09         9  8.472  9 0.487   0.941 0.000    10     1  1.000
10  I10        10  8.331  9 0.501   0.926 0.000    10     1  1.000
11  I11        11 12.353  9 0.194   1.373 0.019    10     1  1.000

-- Average Item Fit Statistics --
S-X2=13.768 | S-X2_df=1.53 
...........................................................
Iteration 1     2018-11-20 23:03:13 
  M steps b parameter   |---  3 Step(s) 
  M steps a parameter   |---  3 Step(s) 
   Deviance=13316.4544
    Maximum b parameter change=0.229114
    Maximum a parameter change=0.327201
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  1 
 Correlations   
...........................................................
Iteration 2     2018-11-20 23:03:13 
  M steps b parameter   |--  2 Step(s) 
  M steps a parameter   |---  3 Step(s) 
   Deviance=13248.5521 | Deviance change=67.902303
    Maximum b parameter change=0.038612
    Maximum a parameter change=0.151513
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  1 
 Correlations   
...........................................................
Iteration 3     2018-11-20 23:03:13 
  M steps b parameter   |--  2 Step(s) 
  M steps a parameter   |---  3 Step(s) 
   Deviance=13239.2381 | Deviance change=9.313948
    Maximum b parameter change=0.015103
    Maximum a parameter change=0.064157
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  1 
 Correlations   
...........................................................
Iteration 4     2018-11-20 23:03:13 
  M steps b parameter   |--  2 Step(s) 
  M steps a parameter   |--  2 Step(s) 
   Deviance=13237.1526 | Deviance change=2.085589
    Maximum b parameter change=0.007818
    Maximum a parameter change=0.026857
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  1 
 Correlations   
...........................................................
Iteration 5     2018-11-20 23:03:13 
  M steps b parameter   |--  2 Step(s) 
  M steps a parameter   |--  2 Step(s) 
   Deviance=13236.6606 | Deviance change=0.49191
    Maximum b parameter change=0.004568
    Maximum a parameter change=0.011262
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  1 
 Correlations   
...........................................................
Iteration 6     2018-11-20 23:03:13 
  M steps b parameter   |--  2 Step(s) 
  M steps a parameter   |--  2 Step(s) 
   Deviance=13236.5336 | Deviance change=0.127064
    Maximum b parameter change=0.002847
    Maximum a parameter change=0.005224
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  1 
 Correlations   
...........................................................
Iteration 7     2018-11-20 23:03:13 
  M steps b parameter   |--  2 Step(s) 
  M steps a parameter   |--  2 Step(s) 
   Deviance=13236.4972 | Deviance change=0.036355
    Maximum b parameter change=0.001836
    Maximum a parameter change=0.002677
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  1 
 Correlations   
...........................................................
Iteration 8     2018-11-20 23:03:13 
  M steps b parameter   |--  2 Step(s) 
  M steps a parameter   |--  2 Step(s) 
   Deviance=13236.4858 | Deviance change=0.011433
    Maximum b parameter change=0.001206
    Maximum a parameter change=0.001374
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  1 
 Correlations   
...........................................................
Iteration 9     2018-11-20 23:03:13 
  M steps b parameter   |-  1 Step(s) 
  M steps a parameter   |-  1 Step(s) 
   Deviance=13236.4819 | Deviance change=0.003889
    Maximum b parameter change=8e-04
    Maximum a parameter change=0.000749
    Maximum c parameter change=0
    Maximum d parameter change=0
 Means:  0 
 Standard deviations:  1 
 Correlations   
*********************************
Item Parameters
   item    N     p b.Dim1 a.Dim1 c d
1   I01 1000 0.799 -1.612  0.933 0 1
2   I02 1000 0.723 -1.120  0.905 0 1
3   I03 1000 0.696 -0.963  0.884 0 1
4   I04 1000 0.566 -0.277  0.411 0 1
5   I05 1000 0.575 -0.352  0.875 0 1
6   I06 1000 0.509 -0.040  0.737 0 1
7   I07 1000 0.449  0.250  1.033 0 1
8   I08 1000 0.409  0.449  1.029 0 1
9   I09 1000 0.347  0.733  0.866 0 1
10  I10 1000 0.283  1.116  1.001 0 1
11  I11 1000 0.215  1.590  1.104 0 1
*********************************
EAP Reliability= 0.62 
-----------------------------------------------------------------
sirt 2.7-50 (2018-07-09 20:56:06) 

Date of Analysis: 2018-11-20 23:03:13 
Time difference of 0.1182823 secs
Computation Time: 0.1182823 

  Function 'smirt' 
   Noncompensatory item response model

    1000 Cases,  11 Items,  1 Dimension(s)
-----------------------------------------------------------------
Number of iterations= 9 
Deviance= 13236.48  | Log Likelihood= -6618.24 
Number of persons= 1000 
Number of estimated parameters= 22 
  Number of estimated item parameters= 22 
               b parameters= 11 
               a parameters= 11 
               c parameters= 0 
               d parameters= 0 
            mu.i parameters= 0 
  Number of estimated distribution parameters= 0 
               Means= 0 
               Covariances= 0 
AIC= 13280.48  | penalty= 44    | AIC=-2*LL + 2*p  
AICc= 13281.52  | penalty= 45.04    | AICc=-2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC)
BIC= 13388.45  | penalty= 151.97    | BIC=-2*LL + log(n)*p  
CAIC= 13410.45  | penalty= 173.97   | CAIC=-2*LL + [log(n)+1]*p  (consistent AIC)

-----------------------------------------------------------------

M Trait:
V1 
 0 

SD Trait:
[1] 1

Correlations Trait: 
     [,1]
[1,]    1

EAP Reliability:
       V1
[1,] 0.62
-----------------------------------------------------------------
Item Parameters 
   item    N     p b.Dim1 a.Dim1 c d
1   I01 1000 0.799 -1.612  0.933 0 1
2   I02 1000 0.723 -1.120  0.905 0 1
3   I03 1000 0.696 -0.963  0.884 0 1
4   I04 1000 0.566 -0.277  0.411 0 1
5   I05 1000 0.575 -0.352  0.875 0 1
6   I06 1000 0.509 -0.040  0.737 0 1
7   I07 1000 0.449  0.250  1.033 0 1
8   I08 1000 0.409  0.449  1.029 0 1
9   I09 1000 0.347  0.733  0.866 0 1
10  I10 1000 0.283  1.116  1.001 0 1
11  I11 1000 0.215  1.590  1.104 0 1
|**********|
|----------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1   I01         1  4.233  8 0.836   0.529 0.000    10     2  1.000
2   I02         2 13.281  8 0.103   1.660 0.026    10     2  0.820
3   I03         3  6.184  8 0.627   0.773 0.000    10     2  1.000
4   I04         4  6.365  8 0.606   0.796 0.000    10     2  1.000
5   I05         5 12.584  8 0.127   1.573 0.024    10     2  0.889
6   I06         6 14.369  8 0.073   1.796 0.028    10     2  0.668
7   I07         7 14.626  8 0.067   1.828 0.029    10     2  0.668
8   I08         8 15.365  8 0.052   1.921 0.030    10     2  0.577
9   I09         9  7.678  8 0.466   0.960 0.000    10     2  1.000
10  I10        10  7.456  8 0.488   0.932 0.000    10     2  1.000
11  I11        11 10.174  8 0.253   1.272 0.016    10     2  1.000

-- Average Item Fit Statistics --
S-X2=10.21 | S-X2_df=1.276 
------------------------------------------------------------
Semiparametric Marginal Maximum Likelihood Estimation 
Raschtype Model with generalized logistic link function: alpha1= 0 , alpha2= 0  
------------------------------------------------------------
...........................................................
Iteration 1     2018-11-20 23:03:13 
   Deviance=13316.4545
    Maximum b parameter change= 0.229157  
...........................................................
Iteration 2     2018-11-20 23:03:13 
   Deviance=13273.7619 | Deviance change=42.692545
    Maximum b parameter change= 0.005445  
...........................................................
Iteration 3     2018-11-20 23:03:13 
   Deviance=13269.5144 | Deviance change=4.247514
    Maximum b parameter change= 0.013954  
...........................................................
Iteration 4     2018-11-20 23:03:13 
   Deviance=13268.5012 | Deviance change=1.013173
    Maximum b parameter change= 0.009303  
...........................................................
Iteration 5     2018-11-20 23:03:13 
   Deviance=13268.4336 | Deviance change=0.067633
    Maximum b parameter change= 0.000992  
...........................................................
Iteration 6     2018-11-20 23:03:13 
   Deviance=13268.4288 | Deviance change=0.004767
    Maximum b parameter change= 0.00069  
...........................................................
Iteration 7     2018-11-20 23:03:13 
   Deviance=13268.4285 | Deviance change=0.000376
    Maximum b parameter change= 0.000123  
...........................................................
Iteration 8     2018-11-20 23:03:13 
   Deviance=13268.4284 | Deviance change=3.5e-05
    Maximum b parameter change= 7.2e-05  
------------------------------------------------------------
Start: 2018-11-20 23:03:13 
End: 2018-11-20 23:03:13 
Time difference of 0.241297 secs
Difference: 0.241297 
------------------------------------------------------------
------------------------------------------------------------
sirt 2.7-50 (2018-07-09 20:56:06) 

Date of Analysis: 2018-11-20 23:03:13 
Time difference of 0.241297 secs
Computation time: 0.241297 

Call:
sirt::rasch.mml2(dat = dat)

Semiparametric Marginal Maximum Likelihood Estimation 
Function 'rasch.mml2' 

Rasch Type Model with Fixed Discrimination, Guessing and Slipping Parameters 
alpha1= 0  alpha2= 0  
Moments: 
   M   SD  Var 
0.00 1.81 3.29 

------------------------------------------------------------
Number of iterations= 8 
Deviance= 13268.43  | Log Likelihood= -6634.21 
Number of persons= 1000 
Number of estimated parameters= 12 
AIC= 13292.43  | penalty= 24    | AIC=-2*LL + 2*p  
AICc= 13292.74  | penalty= 24.32    | AICc=-2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC)
BIC= 13351.32  | penalty= 82.89    | BIC=-2*LL + log(n)*p  
CAIC= 13363.32  | penalty= 94.89   | CAIC=-2*LL + [log(n)+1]*p  (consistent AIC)

Trait Distribution ( 21  Knots )
 Mean= 0 
 SD= 0.864 
 Skewness= 0
Item Difficulty Distribution ( 11  Items )
 Mean= -0.035  SD= 0.948 
Distribution of Items Administered ( 11  Items )
 Mean= 11  SD= 0 

EAP Reliability: 0.608
------------------------------------------------------------
Item Parameter 
   item    N     p      b est.b a est.a thresh c est.c d est.d emp.discrim
1   I01 1000 0.799 -1.582     1 1     0 -1.582 0     0 1     0       0.405
2   I02 1000 0.723 -1.107     2 1     0 -1.107 0     0 1     0       0.425
3   I03 1000 0.696 -0.957     3 1     0 -0.957 0     0 1     0       0.445
4   I04 1000 0.566 -0.308     4 1     0 -0.308 0     0 1     0       0.356
5   I05 1000 0.575 -0.351     5 1     0 -0.351 0     0 1     0       0.459
6   I06 1000 0.509 -0.042     6 1     0 -0.042 0     0 1     0       0.443
7   I07 1000 0.449  0.238     7 1     0  0.238 0     0 1     0       0.509
8   I08 1000 0.409  0.427     8 1     0  0.427 0     0 1     0       0.484
9   I09 1000 0.347  0.733     9 1     0  0.733 0     0 1     0       0.442
10  I10 1000 0.283  1.073    10 1     0  1.073 0     0 1     0       0.442
11  I11 1000 0.215  1.486    11 1     0  1.486 0     0 1     0       0.437
   alpha1 alpha2
1       0      0
2       0      0
3       0      0
4       0      0
5       0      0
6       0      0
7       0      0
8       0      0
9       0      0
10      0      0
11      0      0
|**********|
|----------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1   I01         1  4.171  9 0.900   0.463 0.000    10     1  1.000
2   I02         2 12.350  9 0.194   1.372 0.019    10     1  1.000
3   I03         3  6.156  9 0.724   0.684 0.000    10     1  1.000
4   I04         4 37.649  9 0.000   4.183 0.056    10     1  0.000
5   I05         5 12.298  9 0.197   1.366 0.019    10     1  1.000
6   I06         6 19.326  9 0.023   2.147 0.034    10     1  0.226
7   I07         7 14.620  9 0.102   1.624 0.025    10     1  0.815
8   I08         8 15.574  9 0.076   1.730 0.027    10     1  0.687
9   I09         9  8.461  9 0.488   0.940 0.000    10     1  1.000
10  I10        10  8.336  9 0.501   0.926 0.000    10     1  1.000
11  I11        11 12.359  9 0.194   1.373 0.019    10     1  1.000

-- Average Item Fit Statistics --
S-X2=13.755 | S-X2_df=1.528 
* TAM 2.13-15 (2018-09-30 14:35:48)
....................................................
Processing Data      2018-11-20 23:03:13 
    * Response Data: 1000 Persons and  11 Items 
    * Numerical integration with 21 nodes
    * Created Design Matrices   ( 2018-11-20 23:03:13 )
    * Calculated Sufficient Statistics   ( 2018-11-20 23:03:13 )
....................................................
Iteration 1     2018-11-20 23:03:13
E Step
M Step Intercepts   |---
  Deviance = 13315.975
  Maximum item intercept parameter change: 0.227328
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.125304
....................................................
Iteration 2     2018-11-20 23:03:13
E Step
M Step Intercepts   |--
  Deviance = 13272.1649 | Absolute change: 43.8101 | Relative change: 0.0033009
  Maximum item intercept parameter change: 0.009357
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.040088
....................................................
Iteration 3     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13270.2616 | Absolute change: 1.9033 | Relative change: 0.00014342
  Maximum item intercept parameter change: 0.006536
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.026554
....................................................
Iteration 4     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13269.3438 | Absolute change: 0.9178 | Relative change: 6.917e-05
  Maximum item intercept parameter change: 0.00444
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.018089
....................................................
Iteration 5     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.8911 | Absolute change: 0.4527 | Relative change: 3.412e-05
  Maximum item intercept parameter change: 0.003057
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.012533
....................................................
Iteration 6     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.6643 | Absolute change: 0.2268 | Relative change: 1.709e-05
  Maximum item intercept parameter change: 0.002126
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.008787
....................................................
Iteration 7     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.5494 | Absolute change: 0.1149 | Relative change: 8.66e-06
  Maximum item intercept parameter change: 0.00149
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.006211
....................................................
Iteration 8     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.4908 | Absolute change: 0.0587 | Relative change: 4.42e-06
  Maximum item intercept parameter change: 0.001051
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.004417
....................................................
Iteration 9     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.4606 | Absolute change: 0.0301 | Relative change: 2.27e-06
  Maximum item intercept parameter change: 0.000745
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.003154
....................................................
Iteration 10     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.4451 | Absolute change: 0.0155 | Relative change: 1.17e-06
  Maximum item intercept parameter change: 0.000537
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.002258
....................................................
Iteration 11     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.4371 | Absolute change: 0.008 | Relative change: 6.1e-07
  Maximum item intercept parameter change: 0.000388
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.001621
....................................................
Iteration 12     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.4329 | Absolute change: 0.0042 | Relative change: 3.1e-07
  Maximum item intercept parameter change: 0.000281
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.001165
....................................................
Iteration 13     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.4308 | Absolute change: 0.0022 | Relative change: 1.6e-07
  Maximum item intercept parameter change: 0.000203
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000838
....................................................
Iteration 14     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.4296 | Absolute change: 0.0011 | Relative change: 8e-08
  Maximum item intercept parameter change: 0.000147
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000604
....................................................
Iteration 15     2018-11-20 23:03:14
E Step
M Step Intercepts   |--
  Deviance = 13268.4291 | Absolute change: 6e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.000106
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000435
....................................................
Iteration 16     2018-11-20 23:03:14
E Step
M Step Intercepts   |-
  Deviance = 13268.4288 | Absolute change: 3e-04 | Relative change: 2e-08
  Maximum item intercept parameter change: 7.7e-05
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000314
....................................................
Iteration 17     2018-11-20 23:03:14
E Step
M Step Intercepts   |-
  Deviance = 13268.4286 | Absolute change: 2e-04 | Relative change: 1e-08
  Maximum item intercept parameter change: 5.6e-05
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000226
....................................................
Iteration 18     2018-11-20 23:03:14
E Step
M Step Intercepts   |-
  Deviance = 13268.4285 | Absolute change: 1e-04 | Relative change: 1e-08
  Maximum item intercept parameter change: 4e-05
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000163
....................................................
Iteration 19     2018-11-20 23:03:14
E Step
M Step Intercepts   |-
  Deviance = 13268.4285 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 2.9e-05
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0.000118
....................................................
Iteration 20     2018-11-20 23:03:14
E Step
M Step Intercepts   |-
  Deviance = 13268.4285 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 2.1e-05
  Maximum item slope parameter change: 0
  Maximum regression parameter change: 0
  Maximum variance parameter change: 8.5e-05
....................................................
Item Parameters
   xsi.index xsi.label     est
1          1       I01 -1.5816
2          2       I02 -1.1070
3          3       I03 -0.9574
4          4       I04 -0.3083
5          5       I05 -0.3509
6          6       I06 -0.0417
7          7       I07  0.2379
8          8       I08  0.4274
9          9       I09  0.7325
10        10       I10  1.0731
11        11       I11  1.4864
...................................
Regression Coefficients
     [,1]
[1,]    0

Variance:
      [,1]
[1,] 0.747


EAP Reliability:
[1] 0.608

-----------------------------
Start:  2018-11-20 23:03:13
End:  2018-11-20 23:03:14 
Time difference of 0.3762994 secs

------------------------------------------------------------
TAM 2.13-15 (2018-09-30 14:35:48) 
sh: 1: cannot create /dev/null: Permission denied
R version 3.4.4 (2018-03-15) x86_64, linux-gnu | nodename=ip-172-31-1-5 | login=unknown 

Date of Analysis: 2018-11-20 23:03:14 
Time difference of 0.3762994 secs
Computation time: 0.3762994 

Multidimensional Item Response Model in TAM 

IRT Model 1PL

Call:
TAM::tam.mml(resp = dat)

------------------------------------------------------------
Number of iterations= 20 
Numeric integration with 21 integration points

Deviance= 13268.43 
   Log likelihood= -6634.21 
Number of persons= 1000 
Number of persons used= 1000 
Number of items= 11 
Number of estimated parameters= 12 
    Item threshold parameters= 11 
    Item slope parameters  = 0 
    Regression parameters  = 0 
    (Co)Variance parameters= 1 

AIC = 13292  | penalty= 24    | AIC=-2*LL + 2*p 
AIC3 = 13304  | penalty= 36    | AIC3=-2*LL + 3*p 
BIC = 13351  | penalty= 82.89    | BIC=-2*LL + log(n)*p 
aBIC = 13313  | penalty= 44.73    | aBIC=-2*LL + log((n-2)/24)*p  (adjusted BIC) 
CAIC = 13363  | penalty= 94.89    | CAIC=-2*LL + [log(n)+1]*p  (consistent AIC) 
AICc = 13293  | penalty= 24.32    | AICc=-2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC) 

------------------------------------------------------------
EAP Reliability
[1] 0.608
------------------------------------------------------------
Covariances and Variances
      [,1]
[1,] 0.747
------------------------------------------------------------
Correlations and Standard Deviations (in the diagonal)
      [,1]
[1,] 0.864
------------------------------------------------------------
Regression Coefficients
     [,1]
[1,]    0
------------------------------------------------------------
Item Parameters -A*Xsi
    item    N     M xsi.item AXsi_.Cat1 B.Cat1.Dim1
I01  I01 1000 0.799   -1.582     -1.582           1
I02  I02 1000 0.723   -1.107     -1.107           1
I03  I03 1000 0.696   -0.957     -0.957           1
I04  I04 1000 0.566   -0.308     -0.308           1
I05  I05 1000 0.575   -0.351     -0.351           1
I06  I06 1000 0.509   -0.042     -0.042           1
I07  I07 1000 0.449    0.238      0.238           1
I08  I08 1000 0.409    0.427      0.427           1
I09  I09 1000 0.347    0.732      0.732           1
I10  I10 1000 0.283    1.073      1.073           1
I11  I11 1000 0.215    1.486      1.486           1
|**********|
|----------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1   I01         1  4.171  9 0.900   0.463 0.000    10     1  1.000
2   I02         2 12.350  9 0.194   1.372 0.019    10     1  1.000
3   I03         3  6.156  9 0.724   0.684 0.000    10     1  1.000
4   I04         4 37.648  9 0.000   4.183 0.056    10     1  0.000
5   I05         5 12.298  9 0.197   1.366 0.019    10     1  1.000
6   I06         6 19.326  9 0.023   2.147 0.034    10     1  0.226
7   I07         7 14.620  9 0.102   1.624 0.025    10     1  0.815
8   I08         8 15.574  9 0.076   1.730 0.027    10     1  0.687
9   I09         9  8.461  9 0.488   0.940 0.000    10     1  1.000
10  I10        10  8.336  9 0.501   0.926 0.000    10     1  1.000
11  I11        11 12.359  9 0.194   1.373 0.019    10     1  1.000

-- Average Item Fit Statistics --
S-X2=13.754 | S-X2_df=1.528 
Loading required package: stats4
Loading required package: lattice

   item   S_X2 df.S_X2 p.S_X2
1   I01  4.071       9  0.907
2   I02 11.775       9  0.226
3   I03  6.154       9  0.724
4   I04 37.648      10  0.000
5   I05 12.298      10  0.266
6   I06 19.325      10  0.036
7   I07 14.620      10  0.147
8   I08 15.574      10  0.112
9   I09  7.816       9  0.553
10  I10  7.835       9  0.551
11  I11 12.351       9  0.194
....................................................
Processing Data      2018-11-20 23:03:14 
    * Response Data: 1000 Persons and  11 Items 
    * Numerical integration with 21 nodes
    * Created Design Matrices   ( 2018-11-20 23:03:14 )
    * Calculated Sufficient Statistics   ( 2018-11-20 23:03:14 )
....................................................
Iteration 1     2018-11-20 23:03:15
E Step
M Step Intercepts   |---
M Step Slopes       |----
  Deviance = 13315.975
  Maximum item intercept parameter change: 0.227328
  Maximum item slope parameter change: 0.327263
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 2     2018-11-20 23:03:15
E Step
M Step Intercepts   |---
M Step Slopes       |---
  Deviance = 13248.5418 | Absolute change: 67.4332 | Relative change: 0.00508986
  Maximum item intercept parameter change: 0.038549
  Maximum item slope parameter change: 0.151478
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 3     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |---
  Deviance = 13239.2357 | Absolute change: 9.3061 | Relative change: 0.00070292
  Maximum item intercept parameter change: 0.015108
  Maximum item slope parameter change: 0.064141
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 4     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |---
  Deviance = 13237.1519 | Absolute change: 2.0837 | Relative change: 0.00015742
  Maximum item intercept parameter change: 0.007827
  Maximum item slope parameter change: 0.026851
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 5     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 13236.6605 | Absolute change: 0.4914 | Relative change: 3.713e-05
  Maximum item intercept parameter change: 0.004574
  Maximum item slope parameter change: 0.011259
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 6     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 13236.5336 | Absolute change: 0.1269 | Relative change: 9.59e-06
  Maximum item intercept parameter change: 0.002851
  Maximum item slope parameter change: 0.005221
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 7     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 13236.4972 | Absolute change: 0.0363 | Relative change: 2.74e-06
  Maximum item intercept parameter change: 0.001839
  Maximum item slope parameter change: 0.002676
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 8     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 13236.4858 | Absolute change: 0.0114 | Relative change: 8.6e-07
  Maximum item intercept parameter change: 0.001208
  Maximum item slope parameter change: 0.001373
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 9     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 13236.4819 | Absolute change: 0.0039 | Relative change: 2.9e-07
  Maximum item intercept parameter change: 0.000801
  Maximum item slope parameter change: 0.000748
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 10     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 13236.4805 | Absolute change: 0.0014 | Relative change: 1.1e-07
  Maximum item intercept parameter change: 0.000533
  Maximum item slope parameter change: 0.000436
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 11     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 13236.48 | Absolute change: 5e-04 | Relative change: 4e-08
  Maximum item intercept parameter change: 0.000355
  Maximum item slope parameter change: 0.000264
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 12     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 13236.4798 | Absolute change: 2e-04 | Relative change: 2e-08
  Maximum item intercept parameter change: 0.000237
  Maximum item slope parameter change: 0.000163
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 13     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |--
  Deviance = 13236.4797 | Absolute change: 1e-04 | Relative change: 1e-08
  Maximum item intercept parameter change: 0.000158
  Maximum item slope parameter change: 0.000101
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 14     2018-11-20 23:03:15
E Step
M Step Intercepts   |--
M Step Slopes       |-
  Deviance = 13236.4796 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 0.000105
  Maximum item slope parameter change: 6.3e-05
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Iteration 15     2018-11-20 23:03:15
E Step
M Step Intercepts   |-
M Step Slopes       |-
  Deviance = 13236.4796 | Absolute change: 0 | Relative change: 0
  Maximum item intercept parameter change: 7e-05
  Maximum item slope parameter change: 3.9e-05
  Maximum regression parameter change: 0
  Maximum variance parameter change: 0
....................................................
Item Parameters
   xsi.index xsi.label     est
1          1       I01 -1.6109
2          2       I02 -1.1189
3          3       I03 -0.9618
4          4       I04 -0.2762
5          5       I05 -0.3512
6          6       I06 -0.0398
7          7       I07  0.2512
8          8       I08  0.4497
9          9       I09  0.7331
10        10       I10  1.1160
11        11       I11  1.5912
...................................
Regression Coefficients
     [,1]
[1,]    0

Variance:
     [,1]
[1,]    1


EAP Reliability:
[1] 0.62

-----------------------------
Start:  2018-11-20 23:03:14
End:  2018-11-20 23:03:15 
Time difference of 0.5729928 secs

------------------------------------------------------------
TAM 2.13-15 (2018-09-30 14:35:48) 
sh: 1: cannot create /dev/null: Permission denied
R version 3.4.4 (2018-03-15) x86_64, linux-gnu | nodename=ip-172-31-1-5 | login=unknown 

Date of Analysis: 2018-11-20 23:03:15 
Time difference of 0.5729928 secs
Computation time: 0.5729928 

Multidimensional Item Response Model in TAM 

IRT Model 2PL

Call:
TAM::tam.mml.2pl(resp = dat)

------------------------------------------------------------
Number of iterations= 15 
Numeric integration with 21 integration points

Deviance= 13236.48 
   Log likelihood= -6618.24 
Number of persons= 1000 
Number of persons used= 1000 
Number of items= 11 
Number of estimated parameters= 22 
    Item threshold parameters= 11 
    Item slope parameters  = 11 
    Regression parameters  = 0 
    (Co)Variance parameters= 0 

AIC = 13280  | penalty= 44    | AIC=-2*LL + 2*p 
AIC3 = 13302  | penalty= 66    | AIC3=-2*LL + 3*p 
BIC = 13388  | penalty= 151.97    | BIC=-2*LL + log(n)*p 
aBIC = 13318  | penalty= 82.01    | aBIC=-2*LL + log((n-2)/24)*p  (adjusted BIC) 
CAIC = 13410  | penalty= 173.97    | CAIC=-2*LL + [log(n)+1]*p  (consistent AIC) 
AICc = 13282  | penalty= 45.04    | AICc=-2*LL + 2*p + 2*p*(p+1)/(n-p-1)  (bias corrected AIC) 

------------------------------------------------------------
EAP Reliability
[1] 0.62
------------------------------------------------------------
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 B.Cat1.Dim1
I01  I01 1000 0.799   -1.611     -1.611       0.932
I02  I02 1000 0.723   -1.119     -1.119       0.904
I03  I03 1000 0.696   -0.962     -0.962       0.883
I04  I04 1000 0.566   -0.276     -0.276       0.411
I05  I05 1000 0.575   -0.351     -0.351       0.875
I06  I06 1000 0.509   -0.040     -0.040       0.736
I07  I07 1000 0.449    0.251      0.251       1.033
I08  I08 1000 0.409    0.450      0.450       1.029
I09  I09 1000 0.347    0.733      0.733       0.865
I10  I10 1000 0.283    1.116      1.116       1.000
I11  I11 1000 0.215    1.591      1.591       1.104
|**********|
|----------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1   I01         1  4.225  8 0.836   0.528 0.000    10     2  1.000
2   I02         2 13.289  8 0.102   1.661 0.026    10     2  0.818
3   I03         3  6.184  8 0.627   0.773 0.000    10     2  1.000
4   I04         4  6.271  8 0.617   0.784 0.000    10     2  1.000
5   I05         5 12.594  8 0.127   1.574 0.024    10     2  0.886
6   I06         6 14.350  8 0.073   1.794 0.028    10     2  0.667
7   I07         7 14.633  8 0.067   1.829 0.029    10     2  0.667
8   I08         8 15.344  8 0.053   1.918 0.030    10     2  0.581
9   I09         9  7.668  8 0.467   0.958 0.000    10     2  1.000
10  I10        10  7.440  8 0.490   0.930 0.000    10     2  1.000
11  I11        11 10.157  8 0.254   1.270 0.016    10     2  1.000

-- Average Item Fit Statistics --
S-X2=10.196 | S-X2_df=1.274 

   item   S_X2 df.S_X2 p.S_X2
1   I01  4.118       9  0.903
2   I02 12.675       9  0.178
3   I03  6.182      10  0.800
4   I04  6.369      10  0.783
5   I05 12.587      10  0.248
6   I06 14.356      10  0.157
7   I07 14.639      10  0.146
8   I08 15.059       9  0.089
9   I09  7.009       9  0.636
10  I10  6.857       9  0.652
11  I11 10.173       9  0.337

Iteration: 1, Log-Lik: -6641.027, Max-Change: 0.08433
Iteration: 2, Log-Lik: -6637.353, Max-Change: 0.05452
Iteration: 3, Log-Lik: -6635.729, Max-Change: 0.03537
Iteration: 4, Log-Lik: -6634.952, Max-Change: 0.02462
Iteration: 5, Log-Lik: -6634.577, Max-Change: 0.01596
Iteration: 6, Log-Lik: -6634.398, Max-Change: 0.01110
Iteration: 7, Log-Lik: -6634.308, Max-Change: 0.00823
Iteration: 8, Log-Lik: -6634.260, Max-Change: 0.00541
Iteration: 9, Log-Lik: -6634.238, Max-Change: 0.00385
Iteration: 10, Log-Lik: -6634.227, Max-Change: 0.00292
Iteration: 11, Log-Lik: -6634.220, Max-Change: 0.00193
Iteration: 12, Log-Lik: -6634.217, Max-Change: 0.00139
Iteration: 13, Log-Lik: -6634.216, Max-Change: 0.00106
Iteration: 14, Log-Lik: -6634.215, Max-Change: 0.00070
Iteration: 15, Log-Lik: -6634.215, Max-Change: 0.00050
Iteration: 16, Log-Lik: -6634.214, Max-Change: 0.00038
Iteration: 17, Log-Lik: -6634.214, Max-Change: 0.00026
Iteration: 18, Log-Lik: -6634.214, Max-Change: 0.00018
Iteration: 19, Log-Lik: -6634.214, Max-Change: 0.00014
Iteration: 20, Log-Lik: -6634.214, Max-Change: 0.00009
   item   S_X2 df.S_X2 p.S_X2
1   I01  4.071       7  0.772
2   I02 11.775       7  0.108
3   I03  6.154       7  0.522
4   I04 37.648       8  0.000
5   I05 12.298       8  0.138
6   I06 19.325       8  0.013
7   I07 14.620       8  0.067
8   I08 15.574       8  0.049
9   I09  7.816       7  0.349
10  I10  7.835       7  0.347
11  I11 12.351       7  0.090
---------------------------------------------------------------------------------
DINA MODEL 
** 2018-11-20 23:03:16 
---------------------------------------------------------------------------------
Iter.  1  :  23:03:16 ,   loglike= -2195.186  / max. param. ch. :  0.210102  / relative deviance change :  1
Iter.  2  :  23:03:16 ,   loglike= -2060.39  / max. param. ch. :  0.074937  / relative deviance change :  0.065422
Iter.  3  :  23:03:16 ,   loglike= -2049.912  / max. param. ch. :  0.02769  / relative deviance change :  0.005112
Iter.  4  :  23:03:16 ,   loglike= -2046.37  / max. param. ch. :  0.011916  / relative deviance change :  0.001731
Iter.  5  :  23:03:16 ,   loglike= -2044.859  / max. param. ch. :  0.008072  / relative deviance change :  0.000739
Iter.  6  :  23:03:16 ,   loglike= -2044.123  / max. param. ch. :  0.006045  / relative deviance change :  0.00036
Iter.  7  :  23:03:16 ,   loglike= -2043.735  / max. param. ch. :  0.004925  / relative deviance change :  0.00019
Iter.  8  :  23:03:16 ,   loglike= -2043.515  / max. param. ch. :  0.004281  / relative deviance change :  0.000108
Iter.  9  :  23:03:16 ,   loglike= -2043.381  / max. param. ch. :  0.003898  / relative deviance change :  6.6e-05
Iter.  10  :  23:03:16 ,   loglike= -2043.292  / max. param. ch. :  0.003663  / relative deviance change :  4.3e-05
Iter.  11  :  23:03:16 ,   loglike= -2043.229  / max. param. ch. :  0.003515  / relative deviance change :  3.1e-05
Iter.  12  :  23:03:16 ,   loglike= -2043.18  / max. param. ch. :  0.00342  / relative deviance change :  2.4e-05
Iter.  13  :  23:03:16 ,   loglike= -2043.141  / max. param. ch. :  0.003357  / relative deviance change :  1.9e-05
Iter.  14  :  23:03:16 ,   loglike= -2043.107  / max. param. ch. :  0.003314  / relative deviance change :  1.6e-05
Iter.  15  :  23:03:16 ,   loglike= -2043.078  / max. param. ch. :  0.003284  / relative deviance change :  1.4e-05
Iter.  16  :  23:03:16 ,   loglike= -2043.052  / max. param. ch. :  0.003261  / relative deviance change :  1.3e-05
Iter.  17  :  23:03:16 ,   loglike= -2043.029  / max. param. ch. :  0.003243  / relative deviance change :  1.1e-05
Iter.  18  :  23:03:16 ,   loglike= -2043.007  / max. param. ch. :  0.003228  / relative deviance change :  1.1e-05
Iter.  19  :  23:03:16 ,   loglike= -2042.987  / max. param. ch. :  0.003213  / relative deviance change :  1e-05
Iter.  20  :  23:03:16 ,   loglike= -2042.969  / max. param. ch. :  0.003199  / relative deviance change :  9e-06
Iter.  21  :  23:03:16 ,   loglike= -2042.951  / max. param. ch. :  0.003186  / relative deviance change :  9e-06
Iter.  22  :  23:03:16 ,   loglike= -2042.935  / max. param. ch. :  0.003171  / relative deviance change :  8e-06
Iter.  23  :  23:03:16 ,   loglike= -2042.919  / max. param. ch. :  0.003156  / relative deviance change :  8e-06
Iter.  24  :  23:03:16 ,   loglike= -2042.904  / max. param. ch. :  0.003141  / relative deviance change :  7e-06
Iter.  25  :  23:03:16 ,   loglike= -2042.89  / max. param. ch. :  0.003125  / relative deviance change :  7e-06
Iter.  26  :  23:03:16 ,   loglike= -2042.876  / max. param. ch. :  0.003108  / relative deviance change :  7e-06
Iter.  27  :  23:03:16 ,   loglike= -2042.863  / max. param. ch. :  0.00309  / relative deviance change :  6e-06
Iter.  28  :  23:03:16 ,   loglike= -2042.85  / max. param. ch. :  0.003072  / relative deviance change :  6e-06
Iter.  29  :  23:03:16 ,   loglike= -2042.838  / max. param. ch. :  0.003053  / relative deviance change :  6e-06
Iter.  30  :  23:03:16 ,   loglike= -2042.826  / max. param. ch. :  0.003033  / relative deviance change :  6e-06
Iter.  31  :  23:03:16 ,   loglike= -2042.815  / max. param. ch. :  0.003013  / relative deviance change :  6e-06
Iter.  32  :  23:03:16 ,   loglike= -2042.804  / max. param. ch. :  0.002992  / relative deviance change :  5e-06
Iter.  33  :  23:03:16 ,   loglike= -2042.793  / max. param. ch. :  0.002971  / relative deviance change :  5e-06
Iter.  34  :  23:03:16 ,   loglike= -2042.782  / max. param. ch. :  0.002949  / relative deviance change :  5e-06
Iter.  35  :  23:03:16 ,   loglike= -2042.772  / max. param. ch. :  0.002927  / relative deviance change :  5e-06
Iter.  36  :  23:03:16 ,   loglike= -2042.762  / max. param. ch. :  0.002904  / relative deviance change :  5e-06
Iter.  37  :  23:03:16 ,   loglike= -2042.752  / max. param. ch. :  0.002881  / relative deviance change :  5e-06
Iter.  38  :  23:03:16 ,   loglike= -2042.743  / max. param. ch. :  0.002858  / relative deviance change :  5e-06
Iter.  39  :  23:03:16 ,   loglike= -2042.734  / max. param. ch. :  0.002834  / relative deviance change :  5e-06
Iter.  40  :  23:03:16 ,   loglike= -2042.725  / max. param. ch. :  0.00281  / relative deviance change :  4e-06
Iter.  41  :  23:03:16 ,   loglike= -2042.716  / max. param. ch. :  0.002785  / relative deviance change :  4e-06
Iter.  42  :  23:03:16 ,   loglike= -2042.707  / max. param. ch. :  0.002761  / relative deviance change :  4e-06
Iter.  43  :  23:03:16 ,   loglike= -2042.699  / max. param. ch. :  0.002736  / relative deviance change :  4e-06
Iter.  44  :  23:03:16 ,   loglike= -2042.69  / max. param. ch. :  0.00271  / relative deviance change :  4e-06
Iter.  45  :  23:03:16 ,   loglike= -2042.682  / max. param. ch. :  0.002685  / relative deviance change :  4e-06
Iter.  46  :  23:03:16 ,   loglike= -2042.674  / max. param. ch. :  0.002659  / relative deviance change :  4e-06
Iter.  47  :  23:03:16 ,   loglike= -2042.666  / max. param. ch. :  0.002633  / relative deviance change :  4e-06
Iter.  48  :  23:03:16 ,   loglike= -2042.659  / max. param. ch. :  0.002607  / relative deviance change :  4e-06
Iter.  49  :  23:03:16 ,   loglike= -2042.651  / max. param. ch. :  0.002581  / relative deviance change :  4e-06
Iter.  50  :  23:03:16 ,   loglike= -2042.644  / max. param. ch. :  0.002555  / relative deviance change :  4e-06
Iter.  51  :  23:03:16 ,   loglike= -2042.637  / max. param. ch. :  0.002528  / relative deviance change :  3e-06
Iter.  52  :  23:03:16 ,   loglike= -2042.63  / max. param. ch. :  0.002501  / relative deviance change :  3e-06
Iter.  53  :  23:03:16 ,   loglike= -2042.623  / max. param. ch. :  0.002475  / relative deviance change :  3e-06
Iter.  54  :  23:03:16 ,   loglike= -2042.616  / max. param. ch. :  0.002448  / relative deviance change :  3e-06
Iter.  55  :  23:03:16 ,   loglike= -2042.61  / max. param. ch. :  0.002421  / relative deviance change :  3e-06
Iter.  56  :  23:03:16 ,   loglike= -2042.603  / max. param. ch. :  0.002394  / relative deviance change :  3e-06
Iter.  57  :  23:03:16 ,   loglike= -2042.597  / max. param. ch. :  0.002367  / relative deviance change :  3e-06
Iter.  58  :  23:03:16 ,   loglike= -2042.591  / max. param. ch. :  0.002341  / relative deviance change :  3e-06
Iter.  59  :  23:03:16 ,   loglike= -2042.585  / max. param. ch. :  0.002314  / relative deviance change :  3e-06
Iter.  60  :  23:03:16 ,   loglike= -2042.579  / max. param. ch. :  0.002287  / relative deviance change :  3e-06
Iter.  61  :  23:03:16 ,   loglike= -2042.573  / max. param. ch. :  0.00226  / relative deviance change :  3e-06
Iter.  62  :  23:03:16 ,   loglike= -2042.567  / max. param. ch. :  0.002233  / relative deviance change :  3e-06
Iter.  63  :  23:03:16 ,   loglike= -2042.562  / max. param. ch. :  0.002206  / relative deviance change :  3e-06
Iter.  64  :  23:03:16 ,   loglike= -2042.556  / max. param. ch. :  0.00218  / relative deviance change :  3e-06
Iter.  65  :  23:03:16 ,   loglike= -2042.551  / max. param. ch. :  0.002153  / relative deviance change :  3e-06
Iter.  66  :  23:03:16 ,   loglike= -2042.546  / max. param. ch. :  0.002127  / relative deviance change :  3e-06
Iter.  67  :  23:03:16 ,   loglike= -2042.541  / max. param. ch. :  0.0021  / relative deviance change :  3e-06
Iter.  68  :  23:03:16 ,   loglike= -2042.536  / max. param. ch. :  0.002074  / relative deviance change :  2e-06
Iter.  69  :  23:03:16 ,   loglike= -2042.531  / max. param. ch. :  0.002047  / relative deviance change :  2e-06
Iter.  70  :  23:03:16 ,   loglike= -2042.526  / max. param. ch. :  0.002021  / relative deviance change :  2e-06
Iter.  71  :  23:03:16 ,   loglike= -2042.521  / max. param. ch. :  0.001995  / relative deviance change :  2e-06
Iter.  72  :  23:03:16 ,   loglike= -2042.516  / max. param. ch. :  0.00197  / relative deviance change :  2e-06
Iter.  73  :  23:03:16 ,   loglike= -2042.512  / max. param. ch. :  0.001944  / relative deviance change :  2e-06
Iter.  74  :  23:03:16 ,   loglike= -2042.507  / max. param. ch. :  0.001918  / relative deviance change :  2e-06
Iter.  75  :  23:03:16 ,   loglike= -2042.503  / max. param. ch. :  0.001893  / relative deviance change :  2e-06
Iter.  76  :  23:03:16 ,   loglike= -2042.499  / max. param. ch. :  0.001868  / relative deviance change :  2e-06
Iter.  77  :  23:03:16 ,   loglike= -2042.495  / max. param. ch. :  0.001843  / relative deviance change :  2e-06
Iter.  78  :  23:03:16 ,   loglike= -2042.49  / max. param. ch. :  0.001818  / relative deviance change :  2e-06
Iter.  79  :  23:03:16 ,   loglike= -2042.486  / max. param. ch. :  0.001793  / relative deviance change :  2e-06
Iter.  80  :  23:03:16 ,   loglike= -2042.482  / max. param. ch. :  0.001768  / relative deviance change :  2e-06
Iter.  81  :  23:03:16 ,   loglike= -2042.479  / max. param. ch. :  0.001744  / relative deviance change :  2e-06
Iter.  82  :  23:03:16 ,   loglike= -2042.475  / max. param. ch. :  0.00172  / relative deviance change :  2e-06
Iter.  83  :  23:03:16 ,   loglike= -2042.471  / max. param. ch. :  0.001696  / relative deviance change :  2e-06
Iter.  84  :  23:03:16 ,   loglike= -2042.468  / max. param. ch. :  0.001672  / relative deviance change :  2e-06
Iter.  85  :  23:03:16 ,   loglike= -2042.464  / max. param. ch. :  0.001649  / relative deviance change :  2e-06
Iter.  86  :  23:03:16 ,   loglike= -2042.461  / max. param. ch. :  0.001626  / relative deviance change :  2e-06
Iter.  87  :  23:03:16 ,   loglike= -2042.457  / max. param. ch. :  0.001602  / relative deviance change :  2e-06
Iter.  88  :  23:03:16 ,   loglike= -2042.454  / max. param. ch. :  0.00158  / relative deviance change :  2e-06
Iter.  89  :  23:03:16 ,   loglike= -2042.45  / max. param. ch. :  0.001557  / relative deviance change :  2e-06
Iter.  90  :  23:03:16 ,   loglike= -2042.447  / max. param. ch. :  0.001535  / relative deviance change :  2e-06
Iter.  91  :  23:03:16 ,   loglike= -2042.444  / max. param. ch. :  0.001512  / relative deviance change :  2e-06
Iter.  92  :  23:03:16 ,   loglike= -2042.441  / max. param. ch. :  0.00149  / relative deviance change :  2e-06
Iter.  93  :  23:03:16 ,   loglike= -2042.438  / max. param. ch. :  0.001469  / relative deviance change :  1e-06
Iter.  94  :  23:03:16 ,   loglike= -2042.435  / max. param. ch. :  0.001447  / relative deviance change :  1e-06
Iter.  95  :  23:03:16 ,   loglike= -2042.432  / max. param. ch. :  0.001426  / relative deviance change :  1e-06
Iter.  96  :  23:03:16 ,   loglike= -2042.429  / max. param. ch. :  0.001405  / relative deviance change :  1e-06
Iter.  97  :  23:03:16 ,   loglike= -2042.427  / max. param. ch. :  0.001384  / relative deviance change :  1e-06
Iter.  98  :  23:03:16 ,   loglike= -2042.424  / max. param. ch. :  0.001363  / relative deviance change :  1e-06
Iter.  99  :  23:03:16 ,   loglike= -2042.421  / max. param. ch. :  0.001343  / relative deviance change :  1e-06
Iter.  100  :  23:03:16 ,   loglike= -2042.419  / max. param. ch. :  0.001323  / relative deviance change :  1e-06
Iter.  101  :  23:03:16 ,   loglike= -2042.416  / max. param. ch. :  0.001303  / relative deviance change :  1e-06
Iter.  102  :  23:03:16 ,   loglike= -2042.414  / max. param. ch. :  0.001284  / relative deviance change :  1e-06
Iter.  103  :  23:03:16 ,   loglike= -2042.411  / max. param. ch. :  0.001264  / relative deviance change :  1e-06
Iter.  104  :  23:03:16 ,   loglike= -2042.409  / max. param. ch. :  0.001245  / relative deviance change :  1e-06
Iter.  105  :  23:03:16 ,   loglike= -2042.406  / max. param. ch. :  0.001226  / relative deviance change :  1e-06
Iter.  106  :  23:03:16 ,   loglike= -2042.404  / max. param. ch. :  0.001207  / relative deviance change :  1e-06
Iter.  107  :  23:03:16 ,   loglike= -2042.402  / max. param. ch. :  0.001189  / relative deviance change :  1e-06
Iter.  108  :  23:03:16 ,   loglike= -2042.4  / max. param. ch. :  0.001171  / relative deviance change :  1e-06
Iter.  109  :  23:03:16 ,   loglike= -2042.397  / max. param. ch. :  0.001153  / relative deviance change :  1e-06
Iter.  110  :  23:03:16 ,   loglike= -2042.395  / max. param. ch. :  0.001135  / relative deviance change :  1e-06
Iter.  111  :  23:03:16 ,   loglike= -2042.393  / max. param. ch. :  0.001117  / relative deviance change :  1e-06
Iter.  112  :  23:03:16 ,   loglike= -2042.391  / max. param. ch. :  0.0011  / relative deviance change :  1e-06
Iter.  113  :  23:03:16 ,   loglike= -2042.389  / max. param. ch. :  0.001083  / relative deviance change :  1e-06
Iter.  114  :  23:03:16 ,   loglike= -2042.387  / max. param. ch. :  0.001066  / relative deviance change :  1e-06
Iter.  115  :  23:03:16 ,   loglike= -2042.385  / max. param. ch. :  0.00105  / relative deviance change :  1e-06
Iter.  116  :  23:03:16 ,   loglike= -2042.383  / max. param. ch. :  0.001033  / relative deviance change :  1e-06
Iter.  117  :  23:03:16 ,   loglike= -2042.382  / max. param. ch. :  0.001017  / relative deviance change :  1e-06
Iter.  118  :  23:03:16 ,   loglike= -2042.38  / max. param. ch. :  0.001001  / relative deviance change :  1e-06
Iter.  119  :  23:03:16 ,   loglike= -2042.378  / max. param. ch. :  0.000985  / relative deviance change :  1e-06
---------------------------------------------------------------------------------
Time difference of 0.1029325 secs
CDM 7.0-12 (Built 2018-11-06 16:23:12)
Call:
 CDM::din(data = sim.dina, q.matrix = sim.qmatrix) 

Date of Analysis: 2018-11-20 23:03:16 
Time difference of 0.1029325 secs
Computation Time: 0.1029325 


Deviance = 4084.756  |   Log-Likelihood= -2042.378 

Number of iterations: 120 

Number of item parameters: 18 
Number of skill class parameters: 7 

Information criteria: 
  AIC = 4134.756 
  BIC = 4234.543 

Mean of RMSEA item fit: 0.039 

Item parameters
   item guess  slip   IDI rmsea
1 Item1 0.086 0.210 0.704 0.014
2 Item2 0.109 0.239 0.652 0.034
3 Item3 0.129 0.185 0.686 0.028
4 Item4 0.226 0.218 0.556 0.019
5 Item5 0.059 0.000 0.941 0.002
6 Item6 0.248 0.500 0.252 0.036
7 Item7 0.243 0.489 0.268 0.041
8 Item8 0.278 0.125 0.597 0.109
9 Item9 0.317 0.027 0.656 0.065

Marginal skill probabilities:
   skill.prob
V1     0.3660
V2     0.5849
V3     0.7875

Tetrachoric correlations among skill dimensions
       V1     V2     V3
V1 1.0000 0.4133 0.3989
V2 0.4133 1.0000 0.2406
V3 0.3989 0.2406 1.0000

Skill Pattern Probabilities 

    000     100     010     001     110     101     011     111 
0.10460 0.01152 0.07144 0.21971 0.02496 0.07930 0.23820 0.25026 
|**********|
|---------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1 Item1         1  9.761  6 0.135   1.627 0.040     8     2  0.945
2 Item2         2  4.942  6 0.551   0.824 0.000     8     2  1.000
3 Item3         3 12.216  6 0.057   2.036 0.051     8     2  0.459
4 Item4         4  4.999  6 0.544   0.833 0.000     8     2  1.000
5 Item5         5  3.850  6 0.697   0.642 0.000     8     2  1.000
6 Item6         6  5.568  6 0.473   0.928 0.000     8     2  1.000
7 Item7         7  5.808  6 0.445   0.968 0.000     8     2  1.000
8 Item8         8 14.890  6 0.021   2.482 0.061     8     2  0.190
9 Item9         9  4.535  6 0.605   0.756 0.000     8     2  1.000

-- Average Item Fit Statistics --
S-X2=7.397 | S-X2_df=1.233 
---------------------------------------------------------------------------------
Mixed DINA & DINO Model 
** 2018-11-20 23:03:17 
---------------------------------------------------------------------------------
Iter.  1  :  23:03:17 ,   loglike= -2310.378  / max. param. ch. :  0.380705  / relative deviance change :  1
Iter.  2  :  23:03:17 ,   loglike= -2093.748  / max. param. ch. :  0.070162  / relative deviance change :  0.103465
Iter.  3  :  23:03:17 ,   loglike= -2083.269  / max. param. ch. :  0.031801  / relative deviance change :  0.00503
Iter.  4  :  23:03:17 ,   loglike= -2078.994  / max. param. ch. :  0.017662  / relative deviance change :  0.002056
Iter.  5  :  23:03:17 ,   loglike= -2076.934  / max. param. ch. :  0.01214  / relative deviance change :  0.000992
Iter.  6  :  23:03:17 ,   loglike= -2075.831  / max. param. ch. :  0.009075  / relative deviance change :  0.000531
Iter.  7  :  23:03:17 ,   loglike= -2075.202  / max. param. ch. :  0.007297  / relative deviance change :  0.000303
Iter.  8  :  23:03:17 ,   loglike= -2074.824  / max. param. ch. :  0.006194  / relative deviance change :  0.000182
Iter.  9  :  23:03:17 ,   loglike= -2074.585  / max. param. ch. :  0.005456  / relative deviance change :  0.000115
Iter.  10  :  23:03:17 ,   loglike= -2074.425  / max. param. ch. :  0.004928  / relative deviance change :  7.7e-05
Iter.  11  :  23:03:17 ,   loglike= -2074.311  / max. param. ch. :  0.004528  / relative deviance change :  5.5e-05
Iter.  12  :  23:03:17 ,   loglike= -2074.225  / max. param. ch. :  0.004213  / relative deviance change :  4.1e-05
Iter.  13  :  23:03:17 ,   loglike= -2074.157  / max. param. ch. :  0.003956  / relative deviance change :  3.3e-05
Iter.  14  :  23:03:17 ,   loglike= -2074.1  / max. param. ch. :  0.00374  / relative deviance change :  2.7e-05
Iter.  15  :  23:03:17 ,   loglike= -2074.052  / max. param. ch. :  0.003556  / relative deviance change :  2.3e-05
Iter.  16  :  23:03:17 ,   loglike= -2074.009  / max. param. ch. :  0.003396  / relative deviance change :  2.1e-05
Iter.  17  :  23:03:17 ,   loglike= -2073.971  / max. param. ch. :  0.003255  / relative deviance change :  1.8e-05
Iter.  18  :  23:03:17 ,   loglike= -2073.937  / max. param. ch. :  0.003129  / relative deviance change :  1.7e-05
Iter.  19  :  23:03:17 ,   loglike= -2073.906  / max. param. ch. :  0.003015  / relative deviance change :  1.5e-05
Iter.  20  :  23:03:17 ,   loglike= -2073.877  / max. param. ch. :  0.002911  / relative deviance change :  1.4e-05
Iter.  21  :  23:03:17 ,   loglike= -2073.85  / max. param. ch. :  0.002816  / relative deviance change :  1.3e-05
Iter.  22  :  23:03:17 ,   loglike= -2073.826  / max. param. ch. :  0.002729  / relative deviance change :  1.2e-05
Iter.  23  :  23:03:17 ,   loglike= -2073.803  / max. param. ch. :  0.002648  / relative deviance change :  1.1e-05
Iter.  24  :  23:03:17 ,   loglike= -2073.782  / max. param. ch. :  0.002573  / relative deviance change :  1e-05
Iter.  25  :  23:03:17 ,   loglike= -2073.763  / max. param. ch. :  0.002502  / relative deviance change :  9e-06
Iter.  26  :  23:03:17 ,   loglike= -2073.744  / max. param. ch. :  0.002437  / relative deviance change :  9e-06
Iter.  27  :  23:03:17 ,   loglike= -2073.727  / max. param. ch. :  0.002375  / relative deviance change :  8e-06
Iter.  28  :  23:03:17 ,   loglike= -2073.711  / max. param. ch. :  0.002317  / relative deviance change :  8e-06
Iter.  29  :  23:03:17 ,   loglike= -2073.696  / max. param. ch. :  0.002263  / relative deviance change :  7e-06
Iter.  30  :  23:03:17 ,   loglike= -2073.682  / max. param. ch. :  0.002211  / relative deviance change :  7e-06
Iter.  31  :  23:03:17 ,   loglike= -2073.668  / max. param. ch. :  0.002163  / relative deviance change :  6e-06
Iter.  32  :  23:03:17 ,   loglike= -2073.656  / max. param. ch. :  0.002117  / relative deviance change :  6e-06
Iter.  33  :  23:03:17 ,   loglike= -2073.644  / max. param. ch. :  0.002074  / relative deviance change :  6e-06
Iter.  34  :  23:03:17 ,   loglike= -2073.632  / max. param. ch. :  0.002032  / relative deviance change :  5e-06
Iter.  35  :  23:03:17 ,   loglike= -2073.622  / max. param. ch. :  0.001993  / relative deviance change :  5e-06
Iter.  36  :  23:03:17 ,   loglike= -2073.611  / max. param. ch. :  0.001956  / relative deviance change :  5e-06
Iter.  37  :  23:03:17 ,   loglike= -2073.602  / max. param. ch. :  0.00192  / relative deviance change :  5e-06
Iter.  38  :  23:03:17 ,   loglike= -2073.593  / max. param. ch. :  0.001886  / relative deviance change :  4e-06
Iter.  39  :  23:03:17 ,   loglike= -2073.584  / max. param. ch. :  0.001853  / relative deviance change :  4e-06
Iter.  40  :  23:03:17 ,   loglike= -2073.575  / max. param. ch. :  0.001822  / relative deviance change :  4e-06
Iter.  41  :  23:03:17 ,   loglike= -2073.567  / max. param. ch. :  0.001792  / relative deviance change :  4e-06
Iter.  42  :  23:03:17 ,   loglike= -2073.56  / max. param. ch. :  0.001763  / relative deviance change :  4e-06
Iter.  43  :  23:03:17 ,   loglike= -2073.553  / max. param. ch. :  0.001735  / relative deviance change :  4e-06
Iter.  44  :  23:03:17 ,   loglike= -2073.546  / max. param. ch. :  0.001708  / relative deviance change :  3e-06
Iter.  45  :  23:03:17 ,   loglike= -2073.539  / max. param. ch. :  0.001682  / relative deviance change :  3e-06
Iter.  46  :  23:03:17 ,   loglike= -2073.533  / max. param. ch. :  0.001657  / relative deviance change :  3e-06
Iter.  47  :  23:03:17 ,   loglike= -2073.526  / max. param. ch. :  0.001633  / relative deviance change :  3e-06
Iter.  48  :  23:03:17 ,   loglike= -2073.52  / max. param. ch. :  0.001609  / relative deviance change :  3e-06
Iter.  49  :  23:03:17 ,   loglike= -2073.515  / max. param. ch. :  0.001586  / relative deviance change :  3e-06
Iter.  50  :  23:03:17 ,   loglike= -2073.509  / max. param. ch. :  0.001564  / relative deviance change :  3e-06
Iter.  51  :  23:03:17 ,   loglike= -2073.504  / max. param. ch. :  0.001542  / relative deviance change :  3e-06
Iter.  52  :  23:03:17 ,   loglike= -2073.499  / max. param. ch. :  0.001521  / relative deviance change :  2e-06
Iter.  53  :  23:03:17 ,   loglike= -2073.494  / max. param. ch. :  0.0015  / relative deviance change :  2e-06
Iter.  54  :  23:03:17 ,   loglike= -2073.49  / max. param. ch. :  0.00148  / relative deviance change :  2e-06
Iter.  55  :  23:03:17 ,   loglike= -2073.485  / max. param. ch. :  0.001461  / relative deviance change :  2e-06
Iter.  56  :  23:03:17 ,   loglike= -2073.481  / max. param. ch. :  0.001441  / relative deviance change :  2e-06
Iter.  57  :  23:03:17 ,   loglike= -2073.477  / max. param. ch. :  0.001423  / relative deviance change :  2e-06
Iter.  58  :  23:03:17 ,   loglike= -2073.473  / max. param. ch. :  0.001404  / relative deviance change :  2e-06
Iter.  59  :  23:03:17 ,   loglike= -2073.469  / max. param. ch. :  0.001386  / relative deviance change :  2e-06
Iter.  60  :  23:03:17 ,   loglike= -2073.465  / max. param. ch. :  0.001369  / relative deviance change :  2e-06
Iter.  61  :  23:03:17 ,   loglike= -2073.461  / max. param. ch. :  0.001351  / relative deviance change :  2e-06
Iter.  62  :  23:03:17 ,   loglike= -2073.458  / max. param. ch. :  0.001334  / relative deviance change :  2e-06
Iter.  63  :  23:03:17 ,   loglike= -2073.454  / max. param. ch. :  0.001318  / relative deviance change :  2e-06
Iter.  64  :  23:03:17 ,   loglike= -2073.451  / max. param. ch. :  0.001302  / relative deviance change :  2e-06
Iter.  65  :  23:03:17 ,   loglike= -2073.448  / max. param. ch. :  0.001286  / relative deviance change :  2e-06
Iter.  66  :  23:03:17 ,   loglike= -2073.445  / max. param. ch. :  0.00127  / relative deviance change :  2e-06
Iter.  67  :  23:03:17 ,   loglike= -2073.442  / max. param. ch. :  0.001255  / relative deviance change :  1e-06
Iter.  68  :  23:03:17 ,   loglike= -2073.439  / max. param. ch. :  0.001239  / relative deviance change :  1e-06
Iter.  69  :  23:03:17 ,   loglike= -2073.436  / max. param. ch. :  0.001225  / relative deviance change :  1e-06
Iter.  70  :  23:03:17 ,   loglike= -2073.433  / max. param. ch. :  0.00121  / relative deviance change :  1e-06
Iter.  71  :  23:03:17 ,   loglike= -2073.43  / max. param. ch. :  0.001196  / relative deviance change :  1e-06
Iter.  72  :  23:03:17 ,   loglike= -2073.428  / max. param. ch. :  0.001181  / relative deviance change :  1e-06
Iter.  73  :  23:03:17 ,   loglike= -2073.425  / max. param. ch. :  0.001168  / relative deviance change :  1e-06
Iter.  74  :  23:03:17 ,   loglike= -2073.423  / max. param. ch. :  0.001154  / relative deviance change :  1e-06
Iter.  75  :  23:03:17 ,   loglike= -2073.42  / max. param. ch. :  0.001141  / relative deviance change :  1e-06
Iter.  76  :  23:03:17 ,   loglike= -2073.418  / max. param. ch. :  0.001127  / relative deviance change :  1e-06
Iter.  77  :  23:03:17 ,   loglike= -2073.416  / max. param. ch. :  0.001114  / relative deviance change :  1e-06
Iter.  78  :  23:03:17 ,   loglike= -2073.414  / max. param. ch. :  0.001102  / relative deviance change :  1e-06
Iter.  79  :  23:03:17 ,   loglike= -2073.411  / max. param. ch. :  0.001089  / relative deviance change :  1e-06
Iter.  80  :  23:03:17 ,   loglike= -2073.409  / max. param. ch. :  0.001077  / relative deviance change :  1e-06
Iter.  81  :  23:03:17 ,   loglike= -2073.407  / max. param. ch. :  0.001064  / relative deviance change :  1e-06
Iter.  82  :  23:03:17 ,   loglike= -2073.405  / max. param. ch. :  0.001052  / relative deviance change :  1e-06
Iter.  83  :  23:03:17 ,   loglike= -2073.403  / max. param. ch. :  0.001041  / relative deviance change :  1e-06
Iter.  84  :  23:03:17 ,   loglike= -2073.402  / max. param. ch. :  0.001029  / relative deviance change :  1e-06
Iter.  85  :  23:03:17 ,   loglike= -2073.4  / max. param. ch. :  0.001018  / relative deviance change :  1e-06
Iter.  86  :  23:03:17 ,   loglike= -2073.398  / max. param. ch. :  0.001006  / relative deviance change :  1e-06
Iter.  87  :  23:03:17 ,   loglike= -2073.396  / max. param. ch. :  0.000995  / relative deviance change :  1e-06
---------------------------------------------------------------------------------
Time difference of 0.0538013 secs
CDM 7.0-12 (Built 2018-11-06 16:23:12)
Call:
 CDM::din(data = CDM::sim.dina, q.matrix = CDM::sim.qmatrix, rule = rule) 

Date of Analysis: 2018-11-20 23:03:17 
Time difference of 0.0538013 secs
Computation Time: 0.0538013 


Deviance = 4146.792  |   Log-Likelihood= -2073.396 

Number of iterations: 88 

Number of item parameters: 18 
Number of skill class parameters: 7 

Information criteria: 
  AIC = 4196.792 
  BIC = 4296.579 

Mean of RMSEA item fit: 0.058 

Item parameters
   item guess  slip   IDI rmsea
1 Item1 0.045 0.581 0.374 0.194
2 Item2 0.113 0.233 0.654 0.040
3 Item3 0.124 0.034 0.842 0.014
4 Item4 0.287 0.233 0.479 0.041
5 Item5 0.106 0.000 0.894 0.002
6 Item6 0.252 0.485 0.263 0.024
7 Item7 0.247 0.457 0.296 0.039
8 Item8 0.287 0.124 0.590 0.097
9 Item9 0.328 0.028 0.644 0.076

Marginal skill probabilities:
   skill.prob
V1     0.2977
V2     0.5449
V3     0.7763

Tetrachoric correlations among skill dimensions
       V1     V2     V3
V1 1.0000 0.3706 0.4623
V2 0.3706 1.0000 0.4683
V3 0.4623 0.4683 1.0000

Skill Pattern Probabilities 

    000     100     010     001     110     101     011     111 
0.13730 0.02213 0.06315 0.23350 0.00114 0.06222 0.26838 0.21218 
|**********|
|---------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1 Item1         1 29.926  6 0.000   4.988 0.100     8     2  0.000
2 Item2         2  7.760  6 0.256   1.293 0.027     8     2  1.000
3 Item3         3 10.398  6 0.109   1.733 0.043     8     2  0.771
4 Item4         4  3.554  6 0.737   0.592 0.000     8     2  1.000
5 Item5         5  4.773  6 0.573   0.795 0.000     8     2  1.000
6 Item6         6 10.751  6 0.096   1.792 0.045     8     2  0.771
7 Item7         7  5.530  6 0.478   0.922 0.000     8     2  1.000
8 Item8         8 10.285  6 0.113   1.714 0.042     8     2  0.771
9 Item9         9  6.348  6 0.385   1.058 0.012     8     2  1.000

-- Average Item Fit Statistics --
S-X2=9.925 | S-X2_df=1.654 
---------------------------------------------------------------------------------
CDM 7.0-12 (2018-11-06 16:23:12) 
GDINA Model 
 Link function: identity 
  ** 2018-11-20 23:03:17 
---------------------------------------------------------------------------------
...........................................................
Iteration 1     2018-11-20 23:03:17 
Deviance = 4550.266
Maximum parameter change: 0.176557 
...........................................................
Iteration 2     2018-11-20 23:03:18 
Deviance = 4221.77 | Deviance change = 328.4955
Maximum parameter change: 0.150646 
...........................................................
Iteration 3     2018-11-20 23:03:18 
Deviance = 4130.516 | Deviance change = 91.25403
Maximum parameter change: 0.096082 
...........................................................
Iteration 4     2018-11-20 23:03:18 
Deviance = 4110.445 | Deviance change = 20.07156
Maximum parameter change: 0.033722 
...........................................................
Iteration 5     2018-11-20 23:03:18 
Deviance = 4103.502 | Deviance change = 6.942683
Maximum parameter change: 0.068065 
...........................................................
Iteration 6     2018-11-20 23:03:18 
Deviance = 4097.246 | Deviance change = 6.255413
Maximum parameter change: 0.019932 
...........................................................
Iteration 7     2018-11-20 23:03:18 
Deviance = 4097.163 | Deviance change = 0.0838917
Maximum parameter change: 0.015967 
...........................................................
Iteration 8     2018-11-20 23:03:18 
Deviance = 4096.78 | Deviance change = 0.3822436
Maximum parameter change: 0.006049 
...........................................................
Iteration 9     2018-11-20 23:03:18 
Deviance = 4096.652 | Deviance change = 0.1278467
Maximum parameter change: 0.00654 
...........................................................
Iteration 10     2018-11-20 23:03:18 
Deviance = 4096.592 | Deviance change = 0.0609568
Maximum parameter change: 0.002611 
...........................................................
Iteration 11     2018-11-20 23:03:18 
Deviance = 4096.552 | Deviance change = 0.0395468
Maximum parameter change: 0.004528 
...........................................................
Iteration 12     2018-11-20 23:03:18 
Deviance = 4096.539 | Deviance change = 0.0132808
Maximum parameter change: 0.001441 
...........................................................
Iteration 13     2018-11-20 23:03:18 
Deviance = 4096.533 | Deviance change = 0.0052891
Maximum parameter change: 0.001339 
...........................................................
Iteration 14     2018-11-20 23:03:18 
Deviance = 4096.531 | Deviance change = 0.0026467
Maximum parameter change: 0.00123 
...........................................................
Iteration 15     2018-11-20 23:03:18 
Deviance = 4096.53 | Deviance change = 0.000808
Maximum parameter change: 0.001132 
...........................................................
Iteration 16     2018-11-20 23:03:18 
Deviance = 4096.53 | Deviance change = -0.0005003
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.001042 
...........................................................
Iteration 17     2018-11-20 23:03:18 
Deviance = 4096.532 | Deviance change = -0.0014445
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.00096 
...........................................................
Iteration 18     2018-11-20 23:03:18 
Deviance = 4096.534 | Deviance change = -0.0021316
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000885 
...........................................................
Iteration 19     2018-11-20 23:03:18 
Deviance = 4096.537 | Deviance change = -0.0026311
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000816 
...........................................................
Iteration 20     2018-11-20 23:03:18 
Deviance = 4096.54 | Deviance change = -0.0029892
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000752 
...........................................................
Iteration 21     2018-11-20 23:03:18 
Deviance = 4096.543 | Deviance change = -0.003238
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000693 
...........................................................
Iteration 22     2018-11-20 23:03:18 
Deviance = 4096.546 | Deviance change = -0.0034005
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.00064 
...........................................................
Iteration 23     2018-11-20 23:03:18 
Deviance = 4096.55 | Deviance change = -0.0034943
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.00059 
...........................................................
Iteration 24     2018-11-20 23:03:18 
Deviance = 4096.553 | Deviance change = -0.0035329
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000545 
...........................................................
Iteration 25     2018-11-20 23:03:18 
Deviance = 4096.557 | Deviance change = -0.0035274
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000503 
...........................................................
Iteration 26     2018-11-20 23:03:18 
Deviance = 4096.56 | Deviance change = -0.0034868
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000464 
...........................................................
Iteration 27     2018-11-20 23:03:18 
Deviance = 4096.564 | Deviance change = -0.0034185
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000429 
...........................................................
Iteration 28     2018-11-20 23:03:18 
Deviance = 4096.567 | Deviance change = -0.0033288
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000396 
...........................................................
Iteration 29     2018-11-20 23:03:18 
Deviance = 4096.57 | Deviance change = -0.0032229
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000366 
...........................................................
Iteration 30     2018-11-20 23:03:18 
Deviance = 4096.573 | Deviance change = -0.0031052
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000338 
...........................................................
Iteration 31     2018-11-20 23:03:18 
Deviance = 4096.576 | Deviance change = -0.0029792
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000312 
...........................................................
Iteration 32     2018-11-20 23:03:18 
Deviance = 4096.579 | Deviance change = -0.0028479
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000289 
...........................................................
Iteration 33     2018-11-20 23:03:18 
Deviance = 4096.582 | Deviance change = -0.0027138
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000267 
...........................................................
Iteration 34     2018-11-20 23:03:18 
Deviance = 4096.585 | Deviance change = -0.0025787
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000247 
...........................................................
Iteration 35     2018-11-20 23:03:18 
Deviance = 4096.587 | Deviance change = -0.0024444
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000228 
...........................................................
Iteration 36     2018-11-20 23:03:18 
Deviance = 4096.589 | Deviance change = -0.0023121
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000211 
...........................................................
Iteration 37     2018-11-20 23:03:18 
Deviance = 4096.591 | Deviance change = -0.0021827
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000195 
...........................................................
Iteration 38     2018-11-20 23:03:18 
Deviance = 4096.593 | Deviance change = -0.002057
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000181 
...........................................................
Iteration 39     2018-11-20 23:03:18 
Deviance = 4096.595 | Deviance change = -0.0019356
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000167 
...........................................................
Iteration 40     2018-11-20 23:03:18 
Deviance = 4096.597 | Deviance change = -0.0018188
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000154 
...........................................................
Iteration 41     2018-11-20 23:03:18 
Deviance = 4096.599 | Deviance change = -0.001707
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000143 
...........................................................
Iteration 42     2018-11-20 23:03:18 
Deviance = 4096.601 | Deviance change = -0.0016003
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000132 
...........................................................
Iteration 43     2018-11-20 23:03:18 
Deviance = 4096.602 | Deviance change = -0.0014988
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000122 
...........................................................
Iteration 44     2018-11-20 23:03:18 
Deviance = 4096.603 | Deviance change = -0.0014025
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000113 
...........................................................
Iteration 45     2018-11-20 23:03:18 
Deviance = 4096.605 | Deviance change = -0.0013113
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 0.000105 
...........................................................
Iteration 46     2018-11-20 23:03:18 
Deviance = 4096.606 | Deviance change = -0.0012251
**** Deviances decreases! Check for nonconvergence.   ****
Maximum parameter change: 9.7e-05 
---------------------------------------------------------------------------------
Time difference of 0.6038935 secs
---------------------------------------------------------------------------------------------------------- 
CDM 7.0-12 (2018-11-06 16:23:12) 

Call:
CDM::gdina(data = CDM::sim.dina, q.matrix = CDM::sim.qmatrix, 
    rule = "ACDM")

Date of Analysis: 2018-11-20 23:03:18 
Time difference of 0.6038935 secs
Computation Time: 0.6038935 

Generalized DINA Model 

Number of iterations = 46
Iteration with minimal deviance = 15 

Estimation method: WLS
Optimizer: CDM
Monotonicity constraints: FALSE
Number of items at boundary monotonicity constraint: NA

Parameter regularization: FALSE

Deviance = 4096.53  | Log likelihood = -2048.26 

Number of persons = 400 
Number of groups = 1 
Number of items = 9 
Number of estimated parameters = 32 
Number of estimated item parameters = 25 
Number of estimated skill class parameters = 7 ( 8 latent skill classes)

AIC = 4161  | penalty = 64    | AIC = -2*LL + 2*p  
BIC = 4288  | penalty = 191.73    | BIC = -2*LL + log(n)*p   
CAIC = 4320  | penalty = 223.73    | CAIC = -2*LL + [log(n)+1]*p  (consistent AIC)   

----------------------------------------------------------------------------
Used Q-matrix 

      V1 V2 V3
Item1  1  1  0
Item2  0  1  1
Item3  1  0  1
Item4  1  0  0
Item5  0  0  1
Item6  0  1  0
Item7  1  1  1
Item8  0  1  1
Item9  0  1  1

----------------------------------------------------------------------------

Item Parameter Estimates 

       link  item itemno partype rule     est     se partype.attr
1  identity Item1      1       0 ACDM -0.0425 0.0650             
2  identity Item1      1       1 ACDM  0.4371 0.0577           V1
3  identity Item1      1       2 ACDM  0.2896 0.0629           V2
4  identity Item2      2       0 ACDM -0.0148 0.0658             
5  identity Item2      2       1 ACDM  0.3000 0.0568           V2
6  identity Item2      2       2 ACDM  0.4982 0.0606           V3
7  identity Item3      3       0 ACDM -0.0076 0.0642             
8  identity Item3      3       1 ACDM  0.5955 0.0487           V1
9  identity Item3      3       2 ACDM  0.2160 0.0632           V3
10 identity Item4      4       0 ACDM  0.2156 0.0265             
11 identity Item4      4       1 ACDM  0.5376 0.0432           V1
12 identity Item5      5       0 ACDM  0.5243 0.0385             
13 identity Item5      5       1 ACDM  0.4757 0.0385           V3
14 identity Item6      6       0 ACDM  0.2348 0.0303             
15 identity Item6      6       1 ACDM  0.3131 0.0462           V2
16 identity Item7      7       0 ACDM  0.1486 0.0326             
17 identity Item7      7       1 ACDM  0.1783 0.0483           V1
18 identity Item7      7       2 ACDM  0.1568 0.0471           V2
19 identity Item7      7       3 ACDM  0.0173 0.0471           V3
20 identity Item8      8       0 ACDM  0.1248 0.0281             
21 identity Item8      8       1 ACDM  0.5754 0.0440           V2
22 identity Item8      8       2 ACDM  0.2602 0.0446           V3
23 identity Item9      9       0 ACDM  0.2052 0.0338             
24 identity Item9      9       1 ACDM  0.1685 0.0395           V2
25 identity Item9      9       2 ACDM  0.5971 0.0440           V3

RMSD (RMSEA) Item Fit Statistics
Item1 Item2 Item3 Item4 Item5 Item6 Item7 Item8 Item9 
0.089 0.064 0.033 0.047 0.046 0.042 0.039 0.033 0.036 

Mean of RMSEA item fit: 0.048 
----------------------------------------------------------------------------
Model Implied Conditional Item Probabilities 

    item rule nessskill itemno skillcomb    prob
1  Item1 ACDM     V1-V2      1       A00 -0.0425
2  Item1 ACDM     V1-V2      1       A10  0.3946
3  Item1 ACDM     V1-V2      1       A01  0.2471
4  Item1 ACDM     V1-V2      1       A11  0.6842
5  Item2 ACDM     V2-V3      2       A00 -0.0148
6  Item2 ACDM     V2-V3      2       A10  0.2853
7  Item2 ACDM     V2-V3      2       A01  0.4834
8  Item2 ACDM     V2-V3      2       A11  0.7834
9  Item3 ACDM     V1-V3      3       A00 -0.0076
10 Item3 ACDM     V1-V3      3       A10  0.5879
11 Item3 ACDM     V1-V3      3       A01  0.2083
12 Item3 ACDM     V1-V3      3       A11  0.8039
13 Item4 ACDM        V1      4        A0  0.2156
14 Item4 ACDM        V1      4        A1  0.7532
15 Item5 ACDM        V3      5        A0  0.5243
16 Item5 ACDM        V3      5        A1  1.0000
17 Item6 ACDM        V2      6        A0  0.2348
18 Item6 ACDM        V2      6        A1  0.5479
19 Item7 ACDM  V1-V2-V3      7      A000  0.1486
20 Item7 ACDM  V1-V2-V3      7      A100  0.3270
21 Item7 ACDM  V1-V2-V3      7      A010  0.3054
22 Item7 ACDM  V1-V2-V3      7      A001  0.1659
23 Item7 ACDM  V1-V2-V3      7      A110  0.4838
24 Item7 ACDM  V1-V2-V3      7      A101  0.3442
25 Item7 ACDM  V1-V2-V3      7      A011  0.3227
26 Item7 ACDM  V1-V2-V3      7      A111  0.5010
27 Item8 ACDM     V2-V3      8       A00  0.1248
28 Item8 ACDM     V2-V3      8       A10  0.7001
29 Item8 ACDM     V2-V3      8       A01  0.3849
30 Item8 ACDM     V2-V3      8       A11  0.9603
31 Item9 ACDM     V2-V3      9       A00  0.2052
32 Item9 ACDM     V2-V3      9       A10  0.3737
33 Item9 ACDM     V2-V3      9       A01  0.8023
34 Item9 ACDM     V2-V3      9       A11  0.9708
----------------------------------------------------------------------------

Skill Probabilities 

   skill.prob0 skill.prob1
V1      0.6013      0.3987
V2      0.4882      0.5118
V3      0.4204      0.5796
----------------------------------------------------------------------------

Polychoric Correlations 

Group 1
      V1    V2    V3
V1 1.000 0.101 0.376
V2 0.101 1.000 0.504
V3 0.376 0.504 1.000

----------------------------------------------------------------------------

Skill Pattern Probabilities 

   000    100    010    110    001    101    011    111 
0.1869 0.1007 0.1233 0.0096 0.1222 0.0785 0.1689 0.2100 
|**********|
|---------|
Please check degrees of freedom (number of estimated paramters) carefully!
They are maybe not correctly calculated.
******    df=Nscgr - Npars   ******* 

   item itemindex   S-X2 df     p S-X2_df RMSEA Nscgr Npars p.holm
1 Item1         1 12.251  5 0.032   2.450 0.060     8     3  0.252
2 Item2         2 10.004  5 0.075   2.001 0.050     8     3  0.486
3 Item3         3 12.978  5 0.024   2.596 0.063     8     3  0.212
4 Item4         4  3.496  6 0.745   0.583 0.000     8     2  1.000
5 Item5         5  2.762  6 0.838   0.460 0.000     8     2  1.000
6 Item6         6  7.957  6 0.241   1.326 0.029     8     2  0.845
7 Item7         7  8.519  4 0.074   2.130 0.053     8     4  0.486
8 Item8         8 10.214  5 0.069   2.043 0.051     8     3  0.486
9 Item9         9  7.129  5 0.211   1.426 0.033     8     3  0.845

-- Average Item Fit Statistics --
S-X2=8.368 | S-X2_df=1.668 

CDM documentation built on Feb. 8, 2019, 5:06 p.m.