DFIT: Differential Functioning of Items and Tests

A set of functions to perform Raju, van der Linden and Fleer's (1995, <doi:10.1177/014662169501900405>) Differential Functioning of Items and Tests (DFIT) analyses. It includes functions to use the Monte Carlo Item Parameter Replication approach (Oshima, Raju, & Nanda, 2006, <doi:10.1111/j.1745-3984.2006.00001.x>) for obtaining the associated statistical significance tests cut-off points. They may also be used for a priori and post-hoc power calculations (Cervantes, 2017, <doi:10.18637/jss.v076.i05>).

Version: 1.1
Imports: msm, mirt, simex, mvtnorm, ggplot2
Published: 2021-08-17
Author: Victor H. Cervantes
Maintainer: Victor H. Cervantes <vhcervantesb at unal.edu.co>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
Citation: DFIT citation info
Materials: README NEWS
In views: Psychometrics
CRAN checks: DFIT results

Downloads:

Reference manual: DFIT.pdf
Package source: DFIT_1.1.tar.gz
Windows binaries: r-devel: DFIT_1.1.zip, r-release: DFIT_1.1.zip, r-oldrel: DFIT_1.1.zip
macOS binaries: r-release (arm64): DFIT_1.1.tgz, r-release (x86_64): DFIT_1.1.tgz, r-oldrel: DFIT_1.1.tgz
Old sources: DFIT archive

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