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International Journal of…2
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Differential Item Functioning Detection with the Mantel-Haenszel Procedure: The Effects of Matching Types and Other Factors
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Socha, Alan; DeMars, Christine E.; Zilberberg, Anna; Phan, Ha – International Journal of Testing, 2015
The Mantel-Haenszel (MH) procedure is commonly used to detect items that function differentially for groups of examinees from various demographic and linguistic backgrounds--for example, in international assessments. As in some other DIF methods, the total score is used to match examinees on ability. In thin matching, each of the total score…
Descriptors: Test Items, Educational Testing, Evaluation Methods, Ability Grouping
Observed-Score Equating with a Heterogeneous Target Population
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Duong, Minh Q.; von Davier, Alina A. – International Journal of Testing, 2012
Test equating is a statistical procedure for adjusting for test form differences in difficulty in a standardized assessment. Equating results are supposed to hold for a specified target population (Kolen & Brennan, 2004; von Davier, Holland, & Thayer, 2004) and to be (relatively) independent of the subpopulations from the target population (see…
Descriptors: Ability Grouping, Difficulty Level, Psychometrics, Statistical Analysis