DETECTION OF DIFFERENTIAL ITEM FUNCTIONING IN THE GRADED RESPONSE MODEL

Authors
COHEN AS KIM SH BAKER FB
Citation
As. Cohen et al., DETECTION OF DIFFERENTIAL ITEM FUNCTIONING IN THE GRADED RESPONSE MODEL, Applied psychological measurement, 17(4), 1993, pp. 335-350
Citations number
29
Categorie Soggetti
Psychologym Experimental","Social Sciences, Mathematical Methods
Journal title
Applied psychological measurement → ACNP
ISSN journal
01466216
Volume
17
Issue
4
Year of publication
1993
Pages
335 - 350
Database
ISI
SICI code
0146-6216(1993)17:4<335:DODIFI>2.0.ZU;2-9
Abstract
Methods for detecting differential item functioning (DIF) have been pr oposed primarily for the item response theory dichotomous response mod el. Three measures Of DIF for the dichotomous response model are exten ded to include Samejima's graded response model: two measures based on area differences between item true score functions, and a chi2 statis tic for comparing differences in item parameters. An illustrative exam ple is presented.