Computerized Adaptive Testing with R: Recent Updates of the Package catR
- Resource Type
- article
- Authors
- David Magis; Juan Ramon Barrada
- Source
- Journal of Statistical Software, Vol 76, Iss 1, Pp 1-19 (2017)
- Subject
- computerized adaptive testing
polytomous IRT models
post-hoc simulations
R package
Statistics
HA1-4737
- Language
- English
- ISSN
- 1548-7660
The purpose of this paper is to list the recent updates of the R package catR. This package allows for generating response patterns under a computerized adaptive testing (CAT) framework with underlying item response theory (IRT) models. Among the most important updates, well-known polytomous IRT models are now supported by catR; several item selection rules have been added; and it is now possible to perform post-hoc simulations. Some functions were also rewritten or withdrawn to improve the usefulness and performances of the package.