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IRTM: Theory-Driven Item Response Theory (IRT) Models

IRT-M is a semi-supervised approach based on Bayesian Item Response Theory that produces theoretically identified underlying dimensions from input data and a constraints matrix. The methodology is fully described in 'Morucci et al. (2024), "Measurement That Matches Theory: Theory-Driven Identification in Item Response Theory Models"'. Details are available at <https://www.cambridge.org/core/journals/american-political-science-review/article/measurement-that-matches-theory-theorydriven-identification-in-item-response-theory-models/395DA1DFE3DCD7B866DC053D7554A30B>.

Version: 0.0.1.1
Depends: truncnorm, tmvtnorm, utils, RcppProgress, RcppDist, ggplot2, R (≥ 3.5.0)
Imports: coda, Rcpp, RcppArmadillo, ggridges, rlang, dplyr, reshape2
LinkingTo: Rcpp, RcppArmadillo, RcppDist, RcppProgress
Suggests: knitr, rmarkdown, testthat (≥ 3.0.0), RColorBrewer, fastDummies, ggrepel, tidyverse, spelling
Published: 2025-04-19
DOI: 10.32614/CRAN.package.IRTM
Author: Marco Morucci [aut], Margaret Foster ORCID iD [cre], David Siegel ORCID iD [aut]
Maintainer: Margaret Foster <m.jenkins.foster at gmail.com>
License: MIT + file LICENSE
NeedsCompilation: yes
Language: en-US
Materials: README
CRAN checks: IRTM results

Documentation:

Reference manual: IRTM.pdf
Vignettes: IRT-M Vignette (Synthetic Data) (source, R code)

Downloads:

Package source: IRTM_0.0.1.1.tar.gz
Windows binaries: r-devel: IRTM_0.0.1.1.zip, r-release: IRTM_0.0.1.1.zip, r-oldrel: IRTM_0.0.1.1.zip
macOS binaries: r-release (arm64): IRTM_0.0.1.1.tgz, r-oldrel (arm64): IRTM_0.0.1.1.tgz, r-release (x86_64): IRTM_0.0.1.1.tgz, r-oldrel (x86_64): IRTM_0.0.1.1.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=IRTM 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.