difR (5.0)

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Collection of Methods to Detect Dichotomous Differential Item Functioning (DIF).


Provides a collection of standard methods to detect differential item functioning among dichotomously scored items. Methods for uniform and non-uniform DIF, based on test-score or IRT methods, for comparing two or more than two groups of respondents, are available (Magis, Beland, Tuerlinckx and De Boeck,A General Framework and an R Package for the Detection of Dichotomous Differential Item Functioning, Behavior Research Methods, 42, 2010, 847-862 ).

Maintainer: David Magis
Author(s): David Magis (U Liege), Sebastien Beland (U Montreal) and Gilles Raiche (UQAM)

License: GPL (>= 2)

Uses: deltaPlotR, lme4, ltm, mirt
Reverse suggests: LSAmitR, sirt

Released over 1 year ago.

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