Final answer:
Multisystematic therapy is an intervention under the applied area of psychotherapy, often used for treating antisocial behavior in youth through varied strategies including behavior analysis and social skills development.
Step-by-step explanation:
Multisystematic therapy is a clinical intervention designed to address serious antisocial behavior in youth and is characterized by its intensive, family- and community-based approach. It falls under the applied area of psychotherapy and is often utilized in various therapeutic settings, including social work, psychology, and psychiatry. This form of therapy can encompass several strategies such as applied behavior analysis (ABA), social communication groups, social skills groups, occupational therapy, and in some cases, medication options. It is important to review research for evidence of efficacy when considering multisystematic therapy, which includes examining clinical trials and meta-analyses, such as those comparing psychotherapy to antidepressant medication for depression and anxiety disorders, to determine the best course of treatment.