Effectiveness of Motivational Interviewing in Impulsivity Reduction of Substance Users under the Methadone Treatment

This study was conducted to investigate the effectiveness of motivational interviewing in reducing the of Substance Users’ impulsivity who were under the Methadone Treatment. In a semi-experimental study، 40 methadone users of one of the addiction treatment centers in Yazd city were selected through availability sampling method and were then divided into two experimental and control group of twenty. In both groups two variables، age and economic satisfaction، were under control. In this research Barrat Impulsivity Scale was used to obtain the data. The experimental group underwent seven 90 minute sessions of motivational interviewing. Following the intervention، the two groups completed the above-mentioned scale as the post test. The post test revealed that motivational interviewing had an effect in reducing cognitive، motor impulsivity and non-planning in the subjects of the experimental group. Results of the study showed that motivational interviewing could significantly decrease cognitive، motor impulsivity and non-planning in experimental group in comparison to the control group.