IRT, CAT, and related Packages In R
I’ve been using some of these a lot for some psychometrics software developmont work. TAM: Test Analysis Modules (3.3-10 released 2019-08-23) sirt: Supplementary Item Response Theory Models (3.7-40 released 2019-11-04) mirt: Multidimensional Item Response Theory (1.31 released 2019-09-15) eRm: Extended Rasch Modeling (1.0-0 released 2019-06-06) catR: Generation of IRT Response Patterns under Computerized Adaptive Testing …