@@ -20233,3 +20233,35 @@ nonparametric Monte-Carlo Tests, itemfit and personfit statistics including
infit and outfit measures, ICC and other plots, automated stepwise item
elimination, simulation module for various binary data matrices.")
(license license:gpl3)))
+
+(define-public r-irtoys
+ (package
+ (name "r-irtoys")
+ (version "0.2.1")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (cran-uri "irtoys" version))
+ (sha256
+ (base32
+ "0h6iiaxikhbxhbyksbjnb09qdxinlkwr2v9yzs5wslbni14paq5q"))))
+ (properties `((upstream-name . "irtoys")))
+ (build-system r-build-system)
+ (propagated-inputs
+ `(("r-ltm" ,r-ltm) ("r-sm" ,r-sm)))
+ (home-page
+ "https://cran.r-project.org/package=irtoys")
+ (synopsis
+ "Collection of Functions Related to Item Response Theory (IRT)")
+ (description
+ "This package provides a collection of functions useful in learning and
+practicing IRT, which can be combined into larger programs. Provides basic CTT
+analysis, a simple common interface to the estimation of item parameters in IRT
+models for binary responses with three different programs (ICL, BILOG-MG, and
+ltm), ability estimation (MLE, BME, EAP, WLE, plausible values), item and
+person fit statistics, scaling methods (MM, MS, Stocking-Lord, and the complete
+Hebaera method), and a rich array of parametric and non-parametric (kernel)
+plots. Estimates and plots Haberman's interaction model when all items are
+dichotomously scored.")
+ (license license:gpl2+)))
+