Intimate partner violence (IPV) is the most common form of violence against women and has been internationally recognized as a global public health concern of pandemic proportions. Intervention programs for IPV perpetrators are aimed at preventing IPV and promoting change in men convicted of IPV. Two main challenges have been identified in such programs to increase their effectiveness: conducting risk assessments to tailor interventions to the specific risks and needs of high-risk IPV perpetrators and decreasing participants¿ elevated dropout rates. Court-mandated participants attending intervention programs for IPV perpetrators who also have alcohol and other drug use problems (ADUPs) have been identified as a high-risk and highly resistant group of IPV perpetrators, compared to those without ADUPs. This doctoral thesis included three studies whose main objectives were (1) to identify the main risk factors and treatment needs of participants with ADUPs court-mandated to attend intervention programs for IPV perpetrators (Studies 1 and 2) and (2) to examine whether incorporating goal setting as a motivational intervention strategy resulted in lower dropout rates for IPV perpetrators and specifically those with ADUPs (Study 3). Results indicated that participants with ADUPs presented specific risk factors for IPV that required attention across multiple levels: sociodemographic, individual, social-relational, attitudinal, and violence-related factors. The main risk factors identified in IPV perpetrators with ADUPs were higher anger and impulsivity levels, heightened clinical symptomatology, increased scores on the antisocial, borderline, and narcissistic personality disorders, lower empathy, self-esteem and intimate support, heightened exposure to stressful life events and trauma, and greater likelihood of dropout, recidivism, and psychological IPV perpetration. Moreover, goal setting was associated with lower dropout rates both for a full sample of participants and specifically for those with ADUPs, even after adjusting for relevant variables. These results have important treatment implications, as identified risk factors could be translated into key intervention targets. Tailoring perpetrator programs to the specific risks and needs of high-risk participants such as those with ADUPs has shown promising results. Therefore, our findings could inform intervention development and facilitation to design strategies addressing identified risk factors to improve participants¿ outcomes. Our findings also support the use of goal setting as a key motivational strategy in such programs to reduce resistance towards the intervention by making participants play an active role in their process of change. Incorporating evidence-based strategies to target participants¿ specific risks and needs may improve the intervention program¿s effectiveness, thereby preventing IPV against women and promoting safe and healthy violence-free intimate relationships.
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