Package: difR 5.1

David Magis

difR: 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 <doi:10.3758/BRM.42.3.847>).

Authors:David Magis, Sebastien Beland and Gilles Raiche

difR_5.1.tar.gz
difR_5.1.tar.gz(r-4.5-noble)difR_5.1.tar.gz(r-4.4-noble)
difR_5.1.tgz(r-4.4-emscripten)difR_5.1.tgz(r-4.3-emscripten)
difR.pdf |difR.html✨
difR/json (API)
NEWS

# Install 'difR' in R:

install.packages('difR', repos = c('https://cran.r-universe.dev', 'https://cloud.r-project.org'))

Datasets:

verbal - Verbal Aggression Data Set

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

3.28 score 5 packages 122 scripts 1.4k downloads 9 mentions 63 exports 80 dependencies

Last updated 5 years agofrom:c6a14ca0d0. Checks:OK: 1 NOTE: 1. Indexed: yes.

Target	Result	Date
Doc / Vignettes	OK	Dec 11 2024
R-4.5-linux	NOTE	Dec 11 2024

Exports:breslowDay contrastMatrix dichoDif difBD difGenLogistic difGenLord difGMH difLogistic difLogReg difLord difLRT difMH difRaju difSIBTEST difStd difTID genDichoDif genLogistik genLordChi2 genMantelHaenszel itemPar1PL itemPar2PL itemPar3PL itemPar3PLconst itemParEst itemRescale Logistik LordChi2 LRT mantelHaenszel plot.BD plot.genLogistic plot.GenLord plot.GMH plot.Logistic plot.Lord plot.LRT plot.MH plot.PDIF plot.Raj plot.SIBTEST plot.TID print.BD print.dichoDif print.genDichoDif print.genLogistic print.GenLord print.GMH print.Logistic print.Lord print.LRT print.MH print.PDIF print.Raj print.SIBTEST print.subLogistic print.TID RajuZ selectDif selectGenDif sibTest stdPDIF subtestLogistic

Dependencies:admisc audio beepr boot brio callr cli cluster codetools crayon curl dcurver deltaPlotR Deriv desc diffobj digest dplyr evaluate expm fansi fs future future.apply generics globals glue GPArotation gridExtra gtable jsonlite lattice lifecycle listenv lme4 ltm magrittr MASS Matrix mgcv minqa mirt msm mvtnorm nlme nloptr parallelly pbapply permute pillar pkgbuild pkgconfig pkgload polycor praise processx progressr ps R.methodsS3 R.oo R.utils R6 Rcpp RcppArmadillo RcppEigen rlang rprojroot RPushbullet sessioninfo SimDesign snow survival testthat tibble tidyselect utf8 vctrs vegan waldo withr

Help page	Topics
Collection of methods to detect dichotomous differential item functioning (DIF) in psychometrics	difR-package difR
Breslow-Day DIF statistic	breslowDay
Contrast matrix for computing generalized Lord's chi-squared DIF statistic	contrastMatrix
Comparison of DIF detection methods	dichoDif print.dichoDif
Breslow-Day DIF method	difBD plot.BD print.BD
Generalized logistic regression DIF method	difGenLogistic plot.genLogistic print.genLogistic
Generalized Lord's chi-squared DIF method	difGenLord plot.GenLord print.GenLord
Generalized Mantel-Haenszel DIF method	difGMH plot.GMH print.GMH
Logistic regression DIF method	difLogistic plot.Logistic print.Logistic
General logistic regression DIF method	difLogReg
Lord's chi-squared DIF method	difLord plot.Lord print.Lord
Likelihood-Ratio Test DIF method	difLRT plot.LRT print.LRT
Mantel-Haenszel DIF method	difMH plot.MH print.MH
Raju's area DIF method	difRaju plot.Raj print.Raj
SIBTEST and Crossing-SIBTEST DIF method	difSIBTEST plot.SIBTEST print.SIBTEST
Standardization DIF method	difStd plot.PDIF print.PDIF
Transformed Item Difficulties (TID) DIF method	difTID plot.TID print.TID
Comparison of DIF detection methods among multiple groups	genDichoDif print.genDichoDif
Generalized logistic regression DIF statistic	genLogistik
Generalized Lord's chi-squared DIF statistic	genLordChi2
Generalized Mantel-Haenszel DIF statistic	genMantelHaenszel
Item parameter estimation for DIF detection using Rasch (1PL) model	itemPar1PL
Item parameter estimation for DIF detection using 2PL model	itemPar2PL
Item parameter estimation for DIF detection using 3PL model	itemPar3PL
Item parameter estimation for DIF detection using constrained 3PL model	itemPar3PLconst
Item parameter estimation for DIF detection	itemParEst
Rescaling item parameters by equal means anchoring	itemRescale
Logistic regression DIF statistic	Logistik
Lord's chi-square DIF statistic	LordChi2
Likelihood-Ratio Test DIF statistic	LRT
Mantel-Haenszel DIF statistic	mantelHaenszel
Raju's area DIF statistic	RajuZ
Selection of one of the DIF detection methods	selectDif
Selection of one of the DIF detection methods among multiple groups	selectGenDif
SIBTEST DIF statistic	sibTest
Standardization DIF statistic	stdPDIF
Testing for DIF among subgroups with generalized logistic regression	print.subLogistic subtestLogistic
Verbal Aggression Data Set	verbal

Package: difR 5.1

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

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