Evaluating the Validity of the Client Evaluation of Motivational Interviewing Scale in a Brief Motivational Intervention for College Student Drinkers.

The Client Evaluation of Motivational Interviewing scale (CEMI) is a measure for assessing client perceptions of clinicians' use of motivational interviewing (MI). This study explored the factorial, convergent and predictive validity of the CEMI with a sample of 137 college students who completed a brief motivational intervention for alcohol harm reduction. A two factor structure was confirmed, supporting previous findings of relational and technical subscales. The CEMI technical subscale partially mediated an increase in readiness to change drinking, while the relational subscale did not. Higher scores on CEMI technical subscale predicted higher scores on the tasks, bond and goals subscales of the Working Alliance Inventory while higher scores on the CEMI relationship subscale predicted an increase in the goals subscale. Finally, the correlations between the CEMI subscales and observer-rated MI spirit score and MI adherent and non-adherent behavioral counts were in the expected directions but did not reach statistical significance. Further revision and evaluation of the CEMI is recommended. Clinical, training and research implications are provided.