Regularized Differential Item Functioning

Performs regularization of differential item functioning (DIF) parameters in item response theory (IRT) models (Belzak & Bauer, 2020) <> using a penalized expectation-maximization algorithm.


Reference manual

It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.


1.0.0 by William Belzak, 7 months ago

Browse source code at

Authors: William Belzak

Documentation:   PDF Manual  

MIT + file LICENSE license

Imports stats, utils, statmod

Suggests knitr, testthat, covr, rmarkdown

See at CRAN