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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.pdf
Vignettes: Round about irtoys

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:

Please use the canonical form https://CRAN.R-project.org/package=irtoys to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.