Development and Validation of a Measure of Intercultural Adjustment Potential in Japanese Sojourners: the Intercultural Adjustment Potential Scale (ICAPS)

We describe the creation and development of a measure that predicts intercultural adjustment potential in Japanese sojourners and immigrants to the US, which we call the ICAPS. We report eight studies that provide evidence for its internal, temporal, and parallel forms reliability; for its predictive ability with not only subjective indices of adjustment, but also with psychometrically standardized measures, peer ratings, and expert ratings; for its convergent validity with a similar measure; for its construct validity with various personality scales; for its incremental validity; and for its external validity in predicting changes as a result of intercultural training, and in identifying experts who work in the intercultural field. We discuss the implications of the availability of this measure to the field for training, research, and education.