Multisystemic Therapy (MST) was developed in the late 1970s to address several limitations of existing mental health services for serious juvenile offenders. These limitations include minimal effectiveness, low accountability of service providers for outcomes, and high cost.
Treatment efforts, in general, have failed to address the complexity of youth needs, being individually-oriented, narrowly focused, and delivered in settings that bear little relation to the problems being addressed (e.g., residential treatment centers, outpatient clinics). Given overwhelming empirical evidence that serious antisocial behavior is determined by the interplay of individual, family, peer, school, and neighborhood factors, it is not surprising that treatments of serious antisocial behavior have been largely ineffective. Restrictive out-of-home placements, such as residential treatment, psychiatric hospitalization, and incarceration, fail to address the known determinants of serious antisocial behavior and fail to alter the natural ecology to which the youth will eventually return. Furthermore, mental health and juvenile justice authorities have had virtually no accountability for outcome, a situation that does not enhance performance. The ineffectiveness of out-of-home placement, coupled with extremely high costs, have led many youth advocates to search for viable alternatives. MST is one treatment model that has a well-documented capacity to address the aforementioned difficulties in providing effective services for juvenile offenders.
Consistent with social-ecological models of behavior and findings from causal modeling studies of delinquency and drug use, MST posits that youth antisocial behavior is multidetermined and linked with characteristics of the individual youth and his or her family, peer group, school, and community contexts. As such, MST interventions aim to attenuate risk factors by building youth and family strengths (protective factors) on a highly individualized and comprehensive basis. The provision of home-based services circumvents barriers to service access that often characterize families of serious juvenile offenders. An emphasis on parental empowerment to modify the natural social network of their children facilitates the maintenance and generalization of treatment gains.
MST is a pragmatic and goal-oriented treatment that specifically targets those factors in each youth’s social network that are contributing to his or her antisocial behavior. Thus, MST interventions typically aim to improve caregiver discipline practices, enhance family affective relations, decrease youth association with deviant peers, increase youth association with prosocial peers, improve youth school or vocational performance, engage youth in prosocial recreational outlets, and develop an indigenous support network of extended family, neighbors, and friends to help caregivers achieve and maintain such changes. Specific treatment techniques used to facilitate these gains are integrated from those therapies that have the most empirical support, including cognitive behavioral, behavioral, and the pragmatic family therapies.
MST services are delivered in the natural environment (e.g., home, school, community). The treatment plan is designed in collaboration with family members and is, therefore, family-driven rather than therapist-driven. The ultimate goal of MST is to empower families to build an environment, through the mobilization of indigenous child, family, and community resources, that promotes health. The typical duration of home-based MST services is approximately 4 months, with multiple therapist-family contacts occurring each week.
Although MST is a family-based treatment model that has similarities with other family therapy approaches, several substantive differences are evident. First, MST places considerable attention on factors in the adolescent and family’s social networks that are linked with antisocial behavior. Hence, for example, MST priorities include removing offenders from deviant peer groups, enhancing school or vocational performance, and developing an indigenous support network for the family to maintain therapeutic gains. Second, MST programs have an extremely strong commitment to removing barriers to service access (see e.g., the home-based model of service delivery). Third, MST services are more intensive than traditional family therapies (e.g., several hours of treatment per week vs. 50 minutes). Fourth, and most important, MST has well-documented long-term outcomes with adolescents presenting serious antisocial behavior and their families. The strongest and most consistent support for the effectiveness of MST comes from controlled studies that focused on violent and chronic juvenile offenders.
The first controlled study of MST with juvenile offenders was published in 1986, and since then, numerous randomized clinical trials with violent and chronic juvenile offenders have been conducted. In these trials, MST has demonstrated:
This success has led to several randomized trials and quasi-experimental studies aimed at extending the effectiveness of MST to other populations of youth presenting serious clinical problems and their families. For more information on the evaluations of MST refer to the Research on Effectiveness web page.