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Ellis, Barbara B. – Intelligence, 1990
Intellectual abilities were measured for 217 German and 205 American college students using tests (in the subjects' native languages) in which equivalence was established by an item-response theory-based differential-item-functioning (DIF) analysis. Comparisons between groups were not the same before and after removal of DIF items. (SLD)
Descriptors: College Students, Comparative Testing, Cross Cultural Studies, Culture Fair Tests