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Direct linkPaek, Insu; Guo, Hongwen – Applied Psychological Measurement, 2011
This study examined how much improvement was attainable with respect to accuracy of differential item functioning (DIF) measures and DIF detection rates in the Mantel-Haenszel procedure when employing focal and reference groups with notably unbalanced sample sizes where the focal group has a fixed small sample which does not satisfy the minimum…
Descriptors: Test Bias, Accuracy, Reference Groups, Investigations
