Thesis:

The Effectiveness of Mindfulness on Psychological Capital and Personality Organization in Young Adults with Substance Addiction in Esfarayen County

The present study aimed to investigate the effectiveness of mindfulness training on psychological capital and personality organization among young individuals with substance addiction in Esfarayen County. This research employed a quasi-experimental design with pre-test and post-test and a control group. The statistical population included all young individuals referred to addiction treatment and counseling centers during the period from March 2023 to May 2024. The sample was selected using an available sampling method and voluntarily among qualified individuals. The final sample consisted of 30 participants (15 in the experimental group and 15 in the control group). The experimental group received 8 sessions of 60-minute mindfulness training based on the protocol by Bowen & Marlatt (2011). The research instruments included the Psychological Capital Questionnaire (Luthans, 2007) and the Personality Organization Questionnaire developed by Kernberg and Clarkin (1995). Data were analyzed using Multivariate Analysis of Covariance (MANCOVA) and Univariate ANCOVA to examine the effect of the intervention.The results showed that mindfulness training significantly improved the total scores of psychological capital and personality organization in the experimental group compared to the control group (p < 0.05). Moreover, the intervention had a more pronounced impact on certain components of psychological capital, such as self-efficacy and hope. Therefore, it can be concluded that mindfulness can serve as an effective complementary therapeutic strategy for the psychological and social rehabilitation of individuals with substance use disorders.

Keywords: Keywords: Mindfulness – Psychological Capital – Personality Organization – Youth – Substance Addicti