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

ABSTRACT:

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 well as self-reported proficiency with written Japanese, age, and educational attainment in two large epidemiologic studies of Japanese-American elderly: the Kame Project (n=1708) and the Honolulu-Asia Aging Study (HAAS; n = 3148). DIF was present if the demographic groups differed in the probability of success on an item, after controlling for their underlying cognitive functioning ability.

Results

SUBMITTER: Gibbons LE 

PROVIDER: S-EPMC2746009 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature