Regularized Differential Item Functioning

Performs regularization of differential item functioning (DIF) parameters in item response theory (IRT) models (Belzak & Bauer, 2020) < https://pubmed.ncbi.nlm.nih.gov/31916799/> using a penalized expectation-maximization algorithm.


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install.packages("regDIF")

1.0.0 by William Belzak, 3 months ago


Browse source code at https://github.com/cran/regDIF


Authors: William Belzak


Documentation:   PDF Manual  


MIT + file LICENSE license


Imports stats, utils, statmod

Suggests knitr, testthat, covr, rmarkdown


See at CRAN