An Approach for Categorizing DIF in Polytomous Items

Autor/in	Penfield, Randall D.
Titel	An Approach for Categorizing DIF in Polytomous Items
Quelle	In: Applied Measurement in Education, 20 (2007) 3, S.335-355 (21 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0895-7347
DOI	10.1080/08957340701431435
Schlagwörter	Simulation; Educational Testing; Test Bias; Evaluation Methods; Measurement Techniques; Classification; Test Items + Suchen Sie Ihr Suchwort? Simulation program; Simulationsprogramm; Testkritik; Messtechnik; Classification system; Klassifikation; Klassifikationssystem; Test content; Testaufgabe
Abstract	A widely used approach for categorizing the level of differential item functioning (DIF) in dichotomous items is the scheme proposed by Educational Testing Service (ETS) based on a transformation of the Mantel-Haeszel common odds ratio. In this article two classification schemes for DIF in polytomous items (referred to as the P1 and P2 schemes) are proposed that parallel the criteria set forth in the ETS scheme for dichotomous items. The theoretical equivalence of the P1 and P2 schemes to the ETS scheme is described, and the results of a simulation study conducted to examine the empirical equivalence of the P1 and P2 schemes to the ETS scheme are presented. (Author).
Anmerkungen	Lawrence Erlbaum. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site: http://www.tandf.co.uk/journals/default.html
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10