Psychometric evaluation and revision of Carver and White's BIS/BAS scales in a diverse sample of young adults.

The psychometric properties of the Behavioral Inhibition System and Behavioral Activation System (BIS/BAS) scales (Carver & White, 1994) were evaluated in a large, racially diverse sample of undergraduate students. Findings from this study indicate that the BIS/BAS scales work differently (i.e., are multidimensional and lack configural invariance) when assessing BIS and BAS in a diverse sample. Numerous model modifications were needed to obtain adequate fitting models for the total sample and individual racial groups. The findings suggest that this is due to items that assess multiple constructs differently across self-reported race categories. As part of this research, a revised version of the BIS/BAS scales was constructed that appears to be invariant across self-reported race category and simultaneously addresses the other psychometric concerns associated with the original scale. Caution should be used when applying the BIS/BAS scales as originally specified to assess behavioral inhibition and activation in a racially diverse sample. Researchers might want to use this revised version of the scale as an alternative.