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

Documentation:

Reference manual:

DFIT.pdf

Downloads:

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-oldrel (arm64): DFIT_1.1.tgz, r-release (x86_64): DFIT_1.1.tgz, r-oldrel (x86_64): DFIT_1.1.tgz
Old sources:	DFIT archive

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