The Effect of a Combination of Group Therapy and Support on the Self-Efficacy and Deviant Behavior of Adolescents

Introduction: The purpose of this study was to investigate the effect of combination therapy and supportive group therapy on the self-efficacy and deviant behavior among adolescents. Methods: The design of this study was quasi-experimental (pre-post test with a control group design). The population was based on the inclusion criteria of young men aged 15-19 years old in high school in Surabaya and the exclusion criteria was adolescents with physical disabilities, mental disorders and illness. A sample of 62 respondents (31/31) was collected using purposive sampling. The independent variable was a combination of group therapy and supportive therapy. The dependent variable was self-efficacy and deviant behavior. The intervention was given 4 times over 4 weeks and the control group was given a standard intervention. The data was collected using a self-efficacy questionnaire. The analysis was conducted using MANOVA. Results: In the intervention and control groups, there was a significant difference between self efficacy and deviant behavior in the adolescents before and after the intervention with a value of 0,000 (p