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Japanese-English language equivalence of the Cognitive Abilities Screening Instrument among Japanese-Americans

Background: The Cognitive Abilities Screening Instrument (CASI) was designed for use in cross-cultural studies of Japanese and Japanese-American elderly in Japan and the U.S.A. The measurement equivalence in Japanese and English had not been confirmed in prior studies.; Methods: We analyzed the 40 CASI items for differential item functioning (DIF) related to test language, as […]