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irtbem2pl: Marginalized Bayesian Item Parameter Estimation, 2pl Model IRT

Estimates item parameters of the two-parameter logistic (2PL) model in Item Response Theory (IRT) using the marginal Bayesian modal estimation via the Expectation-Maximization (EM) algorithm. The package calibrates item discrimination and difficulty parameters, yielding results comparable to software like 'BILOG-MG'.

Version: 1.0.0
Depends: R (≥ 3.5.0)
Imports: IRTBEMM
Published: 2026-06-08
DOI: 10.32614/CRAN.package.irtbem2pl
Author: Juan Luis Legorreta Torres [aut, cre]
Maintainer: Juan Luis Legorreta Torres <jlegorreta2002 at yahoo.com.mx>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
URL: https://github.com/juanluislegorretatorres/irtbem2pl
NeedsCompilation: no
Language: en-US
CRAN checks: irtbem2pl results

Documentation:

Reference manual: irtbem2pl.html , irtbem2pl.pdf

Downloads:

Package source: irtbem2pl_1.0.0.tar.gz
Windows binaries: r-devel: irtbem2pl_1.0.0.zip, r-release: irtbem2pl_1.0.0.zip, r-oldrel: irtbem2pl_1.0.0.zip
macOS binaries: r-release (arm64): irtbem2pl_1.0.0.tgz, r-oldrel (arm64): irtbem2pl_1.0.0.tgz, r-release (x86_64): irtbem2pl_1.0.0.tgz, r-oldrel (x86_64): irtbem2pl_1.0.0.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=irtbem2pl 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.
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