catR: Generation of IRT Response Patterns under Computerized Adaptive Testing

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 Barrada (2017) <doi:10.18637/jss.v076.c01>).

Version: 3.17
Depends: R (≥ 4.0.0)
Published: 2022-06-24
DOI: 10.32614/CRAN.package.catR
Author: David Magis (U Liege, Belgium), Gilles Raiche (UQAM, Canada), Juan Ramon Barrada (U Zaragoza, Spain)
Maintainer: Cheng Hua <chuabest at>
License: GPL (≥ 3)
NeedsCompilation: no
Citation: catR citation info
Materials: NEWS
In views: Psychometrics
CRAN checks: catR results


Reference manual: catR.pdf


Package source: catR_3.17.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): catR_3.17.tgz, r-oldrel (arm64): catR_3.17.tgz, r-release (x86_64): catR_3.17.tgz, r-oldrel (x86_64): catR_3.17.tgz
Old sources: catR archive

Reverse dependencies:

Reverse imports: RSP
Reverse suggests: catIrt, catSurv, scaleAlign


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