Effectiveness of the motivational interviewing techniques with perpetrators of intimate partner violence: A non-randomized clinical trial

Abstract

This study evaluates the impact of incorporating Motivational Interviewing Techniques (MIT) into standard perpetrator intervention programs (PIPs) for individuals who have used intimate partner violence (IPV). Conducted as a non-randomized clinical trial, the research compares two groups: one receiving MIT alongside a standard PIP (SPIP) and one receiving SPIP alone. Findings suggest that participants who received MIT demonstrated greater motivation for change, higher treatment adherence, and improved problem-solving skills compared to those in the SPIP-only condition. The study also identifies significant reductions in attitudes that condone IPV, IPV perpetration, and recidivism risk among participants in the MIT-enhanced intervention. These results highlight the potential for motivational interviewing to improve the effectiveness of IPV perpetrator programs by fostering readiness to change and supporting long-term behavioural transformation.