A general framework and an R package for the detection of dichotomous differential item functioning
A general framework and an R package for the detection of dichotomous differential item functioning
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DOI:
10.3758/brm.42.3.847
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发表时间:
2010-08-01
影响因子:
5.4
通讯作者:
De Boeck, Paul
中科院分区:
文献类型:
--
作者:
Magis, David;Beland, Sebastien;De Boeck, Paul
Differential item functioning (DIF) is an important issue of interest in psychometrics and educational measurement. Several methods have been proposed in recent decades for identifying items that function differently between two or more groups of examinees. Starting from a framework for classifying DIF detection methods and from a comparative overview of the most traditional methods, an R package for nine methods, called difR, is presented. The commands and options are briefly described, and the package is illustrated through the analysis of a data set on verbal aggression.