Treatment Retention and Changes in Motivation Among Drug Court Probationers

This study examined whether Motivational Interviewing (MI), found effective with voluntary entrants to drug treatment, would improve intrinsic motivation and treatment retention among drug court probationers. Probationers were randomly assigned to receive either a two-session MI intervention or a two-session Drug Education (DE) intervention preceding drug-free outpatient counseling. Participants who received MI (n = 72) did not differ from participants who received DE (n = 68) nor from participants who did not attend either MI or DE sessions (n = 56) on changes in motivation during the first month of treatment or in treatment retention. Baseline motivation was inversely related to time in treatment; however, motivation after one month of treatment, and change in motivation from baseline to one month, were independently and positively related to treatment retention.