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irtbem2pl  

Marginalized Bayesian Item Parameter Estimation, 2pl Model IRT
View on CRAN: Click here


Download and install irtbem2pl package within the R console
Install from CRAN:
install.packages("irtbem2pl")

Install from Github:
library("remotes")
install_github("cran/irtbem2pl")

Install by package version:
library("remotes")
install_version("irtbem2pl", "1.0.0")



Attach the package and use:
library("irtbem2pl")
Maintained by
Juan Luis Legorreta Torres
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-06-08
Latest Update: 2026-06-08
Description:
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'.
How to cite:
Juan Luis Legorreta Torres (2026). irtbem2pl: Marginalized Bayesian Item Parameter Estimation, 2pl Model IRT. R package version 1.0.0, https://cran.r-project.org/web/packages/irtbem2pl. Accessed 25 Jun. 2026.
Previous versions and publish date:
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