irtoys: A Collection of Functions Related to Item Response Theory (IRT)

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.

Version:	0.2.2
Depends:	sm, ltm
Suggests:	MASS, knitr, rmarkdown
Published:	2022-05-12
DOI:	10.32614/CRAN.package.irtoys
Author:	Ivailo Partchev [aut, cre], Gunter Maris [aut], Tamaki Hattori [ctb]
Maintainer:	Ivailo Partchev <partchev at gmail.com>
License:	GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation:	yes
Materials:	NEWS
In views:	Psychometrics
CRAN checks:	irtoys results

Documentation:

Reference manual:	irtoys.html , irtoys.pdf
Vignettes:	Round about irtoys (source, R code)

Downloads:

Package source:	irtoys_0.2.2.tar.gz
Windows binaries:	r-devel: irtoys_0.2.2.zip, r-release: irtoys_0.2.2.zip, r-oldrel: irtoys_0.2.2.zip
macOS binaries:	r-release (arm64): irtoys_0.2.2.tgz, r-oldrel (arm64): irtoys_0.2.2.tgz, r-release (x86_64): irtoys_0.2.2.tgz, r-oldrel (x86_64): irtoys_0.2.2.tgz
Old sources:	irtoys archive

Reverse dependencies:

Reverse depends:	subscore
Reverse imports:	irtGUI, PerFit, PsyControl, shinyIRT
Reverse suggests:	catIrt, PLmixed

Linking:

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