Communicative Adaptability Scale: Evaluating Its Use as an ‘Other-Report’ Measure

This study explored the validity and reliability of the Communicative Adaptability Scale (CAS) (Duran, Citation1983) as an “other-report” measure of competence. Dyads (N = 432) provided self-other reports of adaptability, self-reports for cognitive flexibility, and other-reports of conversational appropriateness. After confirmatory factor analysis on all four measures, the data were subjected to the Social Relations Model (Kenny, Kashy, & Cook, Citation2006) and correlational analysis. Support for the CAS as an other-report measure was established. The final CFA resulted in appropriate fit indices, the CAS subscales demonstrated acceptable reliability, and concurrent validity was established for this sample.