Cultural adaptation is important to assess; however, most acculturation measures are unidimensional with little psychometric data for older immigrants. This study assessed a bidimensional measure, the Vancouver Index of Acculturation (VIA; Ryder, Alden, & Paulhus, 2000), among 149 (mean age: 73.92 years) Chinese Canadians. Internal consistencies were .84 and .83 for the Mainstream and Heritage subscales respectively, and they were orthogonal. Convergent and discriminant validity were demonstrated by predicted correlations between the VIA subscales and age at immigration, years in Canada, English fluency, and the Belief in Chinese Culture and Values Scale (BCCV; Lai & Chau, 2007). The VIA accounted for significantly more variance in language ability than the BCCV, above and beyond acculturation proxies. Exploratory factor analysis replicated the two-factor structure reported by Ryder et al. (2000). A confirmatory factor analysis indicated poor fit. This study supports a bidimensional model of cultural adaptation among older Chinese Canadians.
