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difR
View on CRAN: Click
here
Download and install difR package within the R console
Install from CRAN:
install.packages("difR")
Install from Github:
library("remotes")
install_github("cran/difR") Install by package version:
library("remotes")
install_version("difR", "6.1.0") Attach the package and use:
library("difR")
Maintained by
David Magis
[Scholar Profile | Author Map]
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2009-09-23
Latest Update: 2025-05-26
Description:
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 ).
How to cite:
David Magis (2009). difR: Collection of Methods to Detect Dichotomous, Polytomous, and Continuous Differential Item Functioning (DIF). R package version 6.1.0, https://cran.r-project.org/web/packages/difR. Accessed 04 Jun. 2026.
Previous versions and publish date:
1.0 (2009-09-23 22:11), 1.1 (2009-10-28 08:56), 2.0 (2009-12-20 10:34), 2.1 (2010-01-14 12:58), 2.2 (2010-01-24 10:11), 3.0 (2010-04-20 16:04), 3.1 (2010-06-22 14:41), 3.2 (2010-10-04 14:50), 3.3 (2010-10-23 09:43), 4.0 (2011-03-04 17:22), 4.1 (2011-06-22 16:32), 4.2 (2012-04-02 08:49), 4.3 (2012-06-13 14:14), 4.4 (2013-01-30 13:35), 4.5 (2013-04-07 18:33), 4.6 (2015-04-29 12:21), 4.7 (2016-11-22 18:29), 4.8 (2018-04-28 11:43), 5.0 (2018-05-14 15:38), 5.1 (2020-05-13 10:10), 6.0.0 (2025-05-26 09:30)
Other packages that cited difR R package
View difR citation profile
Other R packages that difR depends,
imports, suggests or enhances
Complete documentation for difR
Functions, R codes and Examples using
the difR R package
Some associated functions: LRT . difR-package . difTID .
Some associated R codes: LRT.R . Logistik.R . difGenLogistic.R . difLogReg.R . difSIBTEST.R . genDichoDif.R . genLogistik.R . mantelHaenszel.R . selectGenDif.R . sibTest.R . subtestLogistic.R . Full difR package functions and examples
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