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Download full textSchmitt, Alicia P.; And Others – 1992
Studies evaluating hypotheses about sources of differential item functioning (DIF) are classified into two categories: observational studies evaluating operational items and randomized DIF studies evaluating specially constructed items. For observational studies, advice is given for item classification, sample selection, the matching criterion,…
Descriptors: Causal Models, Classification, Effect Size, Estimation (Mathematics)
