difR5.1 package

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

breslowDay.rd

Breslow-Day DIF statistic

contrastMatrix.rd

Contrast matrix for computing generalized Lord's chi-squared DIF stati...

dichoDif.rd

Comparison of DIF detection methods

difBD.rd

Breslow-Day DIF method

difGenLogistic.rd

Generalized logistic regression DIF method

difGenLord.rd

Generalized Lord's chi-squared DIF method

difGMH.rd

Generalized Mantel-Haenszel DIF method

difLogistic.rd

Logistic regression DIF method

difLogReg.rd

General logistic regression DIF method

difLord.rd

Lord's chi-squared DIF method

difLRT.rd

Likelihood-Ratio Test DIF method

difMH.rd

Mantel-Haenszel DIF method

difR-package

Collection of methods to detect dichotomous differential item function...

difRaju.rd

Raju's area DIF method

difSIBTEST.rd

SIBTEST and Crossing-SIBTEST DIF method

difStd.rd

Standardization DIF method

difTID

Transformed Item Difficulties (TID) DIF method

genDichoDif.rd

Comparison of DIF detection methods among multiple groups

genLogistik.rd

Generalized logistic regression DIF statistic

genLordChi2.rd

Generalized Lord's chi-squared DIF statistic

genMantelHaenszel.rd

Generalized Mantel-Haenszel DIF statistic

itemPar1PL.rd

Item parameter estimation for DIF detection using Rasch (1PL) model

itemPar2PL.rd

Item parameter estimation for DIF detection using 2PL model

itemPar3PL.rd

Item parameter estimation for DIF detection using 3PL model

itemPar3PLconst.rd

Item parameter estimation for DIF detection using constrained 3PL mode...

itemParEst.rd

Item parameter estimation for DIF detection

itemRescale.rd

Rescaling item parameters by equal means anchoring

Logistik.rd

Logistic regression DIF statistic

LordChi2.rd

Lord's chi-square DIF statistic

LRT

Likelihood-Ratio Test DIF statistic

mantelHaenszel.rd

Mantel-Haenszel DIF statistic

RajuZ.rd

Raju's area DIF statistic

selectDif.rd

Selection of one of the DIF detection methods

selectGenDif.rd

Selection of one of the DIF detection methods among multiple groups

sibTest.rd

SIBTEST DIF statistic

stdPDIF.rd

Standardization DIF statistic

subtestLogistic.rd

Testing for DIF among subgroups with generalized logistic regression

verbal.rd

Verbal Aggression Data Set

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 <doi:10.3758/BRM.42.3.847>).

  • Maintainer: David Magis
  • License: GPL (>= 2)
  • Last published: 2020-05-13