This study examines the effect of inmate stress and the correctional environment on behavioral change, with motivation as a mediating variable, at Class IIA Serang Correctional Institution in Indonesia. The research is motivated by persistent issues such as overcrowding and high levels of psychological stress, which potentially hinder the effectiveness of rehabilitation programs and reduce the likelihood of successful behavioral transformation among inmates. Therefore, this study aims to analyze the direct and indirect relationships between stress, correctional environment, motivation, and behavioral change. A quantitative research design was employed using a survey method involving 254 inmates selected through proportional sampling. Data were collected using structured questionnaires measured on a Likert scale and analyzed using Structural Equation Modeling–Partial Least Squares (SEM-PLS). The results indicate that inmate stress has a significant negative effect on motivation, while the correctional environment has a significant positive effect on motivation. Furthermore, motivation significantly influences behavioral change and serves as a mediating variable that strengthens the relationship between the correctional environment and behavioral outcomes, while weakening the negative impact of stress. These findings suggest that behavioral change in correctional settings is influenced by both psychological and environmental factors. In conclusion, effective rehabilitation requires an integrated approach that focuses on reducing stress levels and improving institutional conditions to enhance inmates’ intrinsic motivation and support sustainable behavioral change.
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