In-session behaviours and adolescents' self-concept and loneliness: A psychodrama process-outcome study.

As adolescents spend many hours a day in school, it is crucial to examine the ways in which therapeutic practices in schools promote their well-being. This longitudinal pilot study examined the contribution of school-based psychodrama group therapy to the self-concept dimensions and perceived loneliness of 40 Israeli adolescents (aged 13-16, 60% boys) in public middle schools. From a process-outcome perspective, we also examined the understudied trajectory of adolescents' in-session behaviours (process variables) and its associations with changes in their self-concepts and loneliness (outcome variables). Psychodrama participants reported increases in global, social, and behavioural self-concepts and a decrease in loneliness compared to the control group. In-session productive behaviours increased and resistance decreased throughout the therapy, but varied process-outcome relationships were found. The study suggests that conducting further research into the process-outcome relationships in psychodrama group therapy is warranted to pinpoint specific mechanisms of change. Suggestions for future studies are provided.