catR: Generation of IRT Response Patterns under Computerized Adaptive Testing

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Provides routines for the generation of response patterns under unidimensional dichotomous and polytomous computerized adaptive testing (CAT) framework. It holds many standard functions to estimate ability, select the first item(s) to administer and optimally select the next item, as well as several stopping rules. Options to control for item exposure and content balancing are also available (Magis and Raiche, Random Generation of Response Patterns under Computerized Adaptive Testing with the R Package catR, Journal of Statistical Software, 48 (8), 2012, 1-31 <doi:10.18637/jss.v048.i08>).

Author
David Magis (U Liege, Belgium), Gilles Raiche (UQAM, Canada), Juan Ramon Barrada (U Zaragoza, Spain)
Date of publication
2016-11-16 08:16:25
Maintainer
David Magis <david.magis@ulg.ac.be>
License
GPL (>= 2)
Version
3.11

View on CRAN

Man pages

breakBank
Breaking the item bank in item parameters and group...
checkStopRule
Checking whether the stopping rule is satisfied
eapEst
EAP ability estimation (dichotomous and polytomous IRT...
eapSem
Standard error of EAP ability estimation (dichotomous and...
EPV
Expected Posterior Variance (EPV)
GDI
Global-discrimination index (GDI) and posterior...
genDichoMatrix
Item bank generation (dichotomous models)
genPattern
Random generation of item response patterns under dichotomous...
genPolyMatrix
Item bank generation (polytomous models)
Ii
Item information functions, first and second derivatives...
integrate.catR
Numerical integration by linear interpolation (for catR...
Ji
Function J(theta) for weighted likelihood estimation...
KL
Kullback-Leibler (KL) and posterior Kullback-Leibler (KLP)...
MEI
(Maximum) Expected Information (MEI)
MWI
Maximum likelihood weighted information (MLWI) and maximum...
nextItem
Selection of the next item
OIi
Observed information function (dichotomous and polytomous...
Pi
Item response probabilities, first, second and third...
randomCAT
Random generation of adaptive tests (dichotomous and...
semTheta
Standard error of ability estimation (dichotomous and...
simulateRespondents
Simulation of multiple examinees of adaptive tests
startItems
Selection of the first items
tcals
Items parameters of the TCALS 1998 data set and subgroups of...
test.cbList
Testing the format of the list for content balancing under...
testList
Testing the format of the input lists
thetaEst
Ability estimation (dichotomous and polytomous models)

Files in this package

catR
catR/inst
catR/inst/CITATION
catR/NAMESPACE
catR/NEWS
catR/data
catR/data/tcals.txt.gz
catR/R
catR/R/Ii.R
catR/R/GDI.R
catR/R/MEI.R
catR/R/startItems.R
catR/R/nextItem.R
catR/R/checkStopRule.R
catR/R/testList.R
catR/R/genPolyMatrix.R
catR/R/OIi.R
catR/R/test.cbList.R
catR/R/Pi.R
catR/R/Ji.R
catR/R/randomCAT.R
catR/R/eapEst.R
catR/R/semTheta.R
catR/R/KL.R
catR/R/genDichoMatrix.R
catR/R/genPattern.R
catR/R/eapSem.R
catR/R/thetaEst.R
catR/R/MWI.R
catR/R/simulateRespondents.R
catR/R/EPV.R
catR/R/integrate.catR.R
catR/R/breakBank.R
catR/MD5
catR/DESCRIPTION
catR/man
catR/man/thetaEst.Rd
catR/man/startItems.Rd
catR/man/genPattern.Rd
catR/man/MWI.Rd
catR/man/checkStopRule.Rd
catR/man/OIi.Rd
catR/man/test.cbList.Rd
catR/man/randomCAT.Rd
catR/man/testList.Rd
catR/man/simulateRespondents.Rd
catR/man/EPV.Rd
catR/man/MEI.Rd
catR/man/tcals.Rd
catR/man/integrate.catR.Rd
catR/man/Pi.Rd
catR/man/nextItem.Rd
catR/man/Ii.Rd
catR/man/GDI.Rd
catR/man/Ji.Rd
catR/man/genPolyMatrix.Rd
catR/man/genDichoMatrix.Rd
catR/man/semTheta.Rd
catR/man/KL.Rd
catR/man/eapEst.Rd
catR/man/eapSem.Rd
catR/man/breakBank.Rd