The Effectiveness of Group Motivational Interviewing on Self-efficacy and Impulsivity of Patients Undergoing Methadone Maintenance

The purpose of this study was to investigate the effectiveness of motivational group interviewing on self-efficacy and impulsivity in male patients undergoing methadone maintenance therapy in Sanandaj. The design of this study is quasi-experimental with pretest-posttest with control group. Sampling was available using a sampling method. A total of 30 individuals referred to substance abuse treatment centers were selected and randomly assigned into two experimental and control groups (15 in each group). Then the Sherer (1986) (SGSES) and Barat Impulsivity (BIS (1995)) questionnaires were completed by two groups. The experimental group underwent group motivational interviewing for 8 sessions. At the end of treatment, both groups were re-tested. The results were analyzed by SPSS 21 software. Statistical methods included descriptive statistics (including mean, standard deviation, minimum and maximum scores) and inferential statistics (analysis of covariance). The results of analysis of covariance showed that there was a significant difference between post-test scores of self-efficacy and impulsivity of the two experimental and control groups (P <0.05). The results showed that motivational group interviewing can be used as an effective treatment in reducing impulsivity and increasing self-efficacy of substance abusers.

Keywords:

Motivational Interviewing , Impulsivity , Self-efficacy , Substance Abuse