DETECTION OF DIFFERENTIAL ITEM FUNCTIONING IN MULTIPLE GROUPS

Citation
Sh. Kim et al., DETECTION OF DIFFERENTIAL ITEM FUNCTIONING IN MULTIPLE GROUPS, Journal of educational measurement, 32(3), 1995, pp. 261-276
Citations number
55
Categorie Soggetti
Psychologym Experimental","Psychology, Applied","Psychology, Educational
ISSN journal
00220655
Volume
32
Issue
3
Year of publication
1995
Pages
261 - 276
Database
ISI
SICI code
0022-0655(1995)32:3<261:DODIFI>2.0.ZU;2-J
Abstract
Detection of differential item functioning (DIF) is most often done be tween two groups of examinees under item response theory. It is someti mes important, however, to determine whether DIF is present in more th an two groups. In this article we present a method for detection of DI F in multiple groups. The method is closely related to Lord's chi-squa re for comparing vectors of item parameters estimated in two groups. A n example using real data is provided.