The Effectiveness of Motivation-Enhancement Therapy on the Balance of Possible Selves and Core Self-Evaluation in Men with Direct and Indirect Ketamine Use Disorder
Keywords:
Motivation-enhancement therapy, balance of possible selves, core self-evaluation, men, direct and indirect ketamine use disorderAbstract
Objective: This study aimed to examine the effectiveness of motivation-enhancement therapy on the balance of possible selves and core self-evaluation in men with direct and indirect ketamine use disorder.
Methods and Materials: A quasi-experimental pre-test–post-test design with a control group was employed. The statistical population consisted of men diagnosed with direct and indirect ketamine use disorder who had referred to the Small Paradise Addiction Treatment Center in Kermanshah in 2024. A total of 30 participants were selected using purposive sampling and randomly assigned to three groups: two experimental groups and one control group. The experimental groups received four 60-minute sessions of motivation-enhancement therapy, while the control group received no intervention. Data collection tools included the Possible Selves Balance Questionnaire and the Core Self-Evaluation Scale. Data were analyzed using multivariate and univariate covariance analyses (MANCOVA and ANCOVA).
Findings: The results showed that motivation-enhancement therapy significantly improved the balance of possible selves and core self-evaluation in men with both direct and indirect ketamine use disorders. Significant differences were observed between the post-test scores of the experimental and control groups, indicating the effectiveness of the intervention.
Conclusion: Motivation-enhancement therapy can be considered an effective intervention for improving psychological constructs such as self-concept and self-evaluation in men struggling with ketamine use disorders.
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