A reliability generalization was conducted on studies that reported use of the Suinn-Lew Asian Self-Identity Acculturation Scale (SL-ASIA), published between 1987 and 2013. For inclusion in this meta-analysis, each study had to have reported a Cronbach's alpha reliability coefficient for its sample. Data from 83 Cronbach's alpha coefficients representing 12,992 participants were analyzed; only 67 out of 193 published studies (43.52%) reported reliability scores for their sample. The reliability scores produced by the SL-ASIA ranged from .62 to .96 with an average of .91 (SD = 0.07); therefore, all of the reported reliability scores for this instrument were in the acceptable to excellent range. Our results demonstrate that SL-ASIA continues to be an instrument with strong psychometric properties when used with diverse populations, and it is therefore appropriate for continued use with studies on acculturation.

The reliability and validity of course grades as measures of general education learning outcomes were assessed using the multitrait-multimethod (MTMM) proposed by Campbell and Fiske. Convergent validity and discriminant validity were assessed on college undergraduate students over a 12-year period. Two procedures were used to test the MTMM. The first procedure was a nested confirmatory factor analysis proposed by Widaman. The second procedure, proposed here, was a direct method to assess discriminant and convergent validity. The analyses were calculated on two different data sets. The data sets included discipline majors and general education categories. Convergent validity and discriminant validity were supported.