Using a Differential Item Functioning (DIF) Procedure to Detect Differences in Opportunity to Learn (OTL): An Extension of Winfield's Approach

Autor/inn/en	Yu, Lan; Suen, Hoi K.; Lei, Pui-Wa
Titel	Using a Differential Item Functioning (DIF) Procedure to Detect Differences in Opportunity to Learn (OTL): An Extension of Winfield's Approach
Quelle	In: Journal of Educational Research & Policy Studies, 8 (2008) 1, S.1-22 (22 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1934-6875
Schlagwörter	Urban Schools; Test Bias; Test Items; Foreign Countries; Teaching Methods; Data Collection; Data Analysis; Research Methodology; Rural Schools; Classification; Test Construction; China + Suchen Sie Ihr Suchwort? Urban area; Urban areas; School; Schools; Stadtregion; Stadt; Schule; Testkritik; Test content; Testaufgabe; Ausland; Teaching method; Lehrmethode; Unterrichtsmethode; Data capture; Datensammlung; Auswertung; Research method; Forschungsmethode; Rural area; Rural areas; Ländlicher Raum; Schulen; Classification system; Klassifikation; Klassifikationssystem; Testaufbau
Abstract	Conventional data collection and analyses to evaluate opportunity to learn (OTL) is time and energy intensive. We propose an extension of an alternative approach suggested by Winfield (1993) by using a method to detect differential item functioning (DIF) to select items. These items are then used as initial indicators of possible difference in OTL in target schools. This study examines the feasibility of using the Mantel-Haenszel DIF method to detect different OTLs in rural and urban schools with data from the China Biology Olympiads Open Exam. DIF results are found to be associated with teachers' content coverage ratings and the theoretical item classification. It is concluded that the proposed method can be used as an initial step for OTL evaluation when the two types of schools are equivalent on aptitude, and the test items cover content area(s) with OTL problem. (Contains 5 tables.) (As Provided).
Anmerkungen	National Office for Research on Measurement and Evaluation Systems. University of Arkansas, 346 North West Avenue, 302 WAAX, Fayetteville, AR 72701. Tel: 479-575-5593; Fax: 479-575-5185; e-mail: normes@uark.edu; Web site: http://normes.uark.edu/erps/resources.html
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10