Evaluating a method of assessing competence in Motivational Interviewing: a study using simulated patients in the United Kingdom.

In this evaluation of a method of assessing competence in Motivational Interviewing (MI), participants were asked to interview an actor simulating a substance abuser who was ambivalent about an important issue. The interviews were videotaped and subsequently rated for competence in MI using the Motivational Interviewing Treatment Integrity code (MITI). Ratings of 43 interviews made independently by trained judges found high levels of inter-rater agreement.