Reference : Random generation of response patterns under computerized adaptive testing with the R...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Mathematics
Random generation of response patterns under computerized adaptive testing with the R package catR
[fr] Génération aléatoire de patrons de réponses en testing adaptatif informatisé avec la librairie catR
Magis, David mailto [Université de Liège - ULg > Département de mathématique > Statistique mathématique >]
Raîche, Gilles [> >]
Journal of Statistical Software
Yes (verified by ORBi)
[en] Computerized adaptive testing ; Item selection ; Ability estimation ; R package
[en] This paper outlines a computerized adaptive testing (CAT) framework and presents an R package for the simulation of response patterns under CAT procedures. This package, called catR, requires a bank of items, previously calibrated according to the four-parameter logistic (4PL) model or any simpler logistic model. The package proposes several methods to select the early test items, several methods for next item selection, di erent estimators of ability (maximum likelihood, Bayes modal, expected a posteriori, weighted likelihood), and three stopping rules (based on the test length, the precision of ability estimates or the classi cation of the examinee). After a short description of the di erent steps of a CAT process, the commands and options of the catR package are presented and practically illustrated.

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