Adolescence is a crucial developmental stage where self-concept plays a role in shaping behavior, identity, and psychosocial adjustment. In an environment that normalizes informal and illegal economic activities, adolescents have the potential to develop maladaptive self-perceptions, making them vulnerable to deviant behaviors such as smuggling. This study aims to analyze the effectiveness of Cognitive Behavioral Therapy (CBT) and Applied Behavior Analysis Therapy (ABAT) in improving the self-concept of adolescents with tendencies toward smuggling. This study used a quasi-experimental design with a pre-test and post-test control group. The subjects were high school students identified as having tendencies toward smuggling using the Students in Business Questionnaire (SIBQ). Data were collected using the Self-Concept Questionnaire (SCQ) and analyzed using Analysis of Covariance (ANCOVA). The results showed significant differences in self-concept between the treatment groups. Both therapies proved more effective than the control group, with ABAT showing higher effectiveness than CBT. No significant differences were found by gender or in interactions between gender and treatment. This study concludes that cognitive and behavioral-based counseling interventions are effective in improving the self-concept of adolescents with deviant tendencies. The implication is that evidence-based counseling programs need to be integrated into education to strengthen the development of positive self-concept.
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