difR: Collection of methods to detect dichotomous differential item functioning (DIF) in psychometrics

The difR package contains several traditional methods to detect DIF in dichotomously scored items. Both uniform and non-uniform DIF effects can be detected, with methods relying upon item response models or not. Some methods deal with more than one focal group.

Version: 4.5
Depends: R (≥ 3.0.0), lme4, ltm
Published: 2013-04-07
Author: David Magis (U Liege), Sebastien Beland (UQAM) and Gilles Raiche (UQAM)
Maintainer: David Magis <david.magis at ulg.ac.be>
License: file LICENSE
NeedsCompilation: no
Materials: NEWS
In views: Psychometrics
CRAN checks: difR results


Reference manual: difR.pdf
Package source: difR_4.5.tar.gz
Windows binaries: r-devel: difR_4.5.zip, r-release: difR_4.5.zip, r-oldrel: difR_4.5.zip
OS X Snow Leopard binaries: r-release: difR_4.5.tgz, r-oldrel: difR_4.5.tgz
OS X Mavericks binaries: r-release: difR_4.5.tgz
Old sources: difR archive