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Detecting Differential Item Functioning Using IRT and Mantel-Haenszel Techniques: Implementing Procedures and Comparing Results.

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Baghi, Heibatollah; Ferrara, Steven F. – 1990

Two techniques for detecting differential item functioning (DIF) of test items are compared: (1) item response theory (IRT), using the three-parameter model; and (2) Mantel-Haenszel chi square techniques (MHCS). The steps necessary for identifying differentially functioning items are identified for both approaches. Using data from the 1988…

Descriptors: Chi Square, Comparative Analysis, Correlation, Grade 9

A Comparison of IRT, Delta Plot, and Mantel-Haenszel Techniques for Detecting Differential Item Functioning Across Subpopulations in the Maryland Test of Citizenship Skills.

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Baghi, Heibatollah; Ferrara, Steven F. – 1989

Use of item response theory (IRT), the delta plot method, and Mantel-Haenszel techniques to assess differential item functioning (DIF) across racial and gender groups associated with the Maryland Test of Citizenship Skills (MTCS) is described. The objective of this research was to determine the: effect of sample size on results from these three…

Descriptors: Black Students, Citizenship Education, Comparative Analysis, Comparative Testing