The Effectiveness of Unified Transdiagnostic Therapy on Emotional Well-Being and Self-esteem in Girls with Body Dysmorphic Disorder (BDD)

Articles in Press

Document Type : Original Article

Authors

1 PhD Students in Psychology, Faculty of Literature and Humanities, University of Guilan, Rasht, Iran

2 Associate Professor of Psychology, Faculty of Literature and Humanities, University of Guilan, Rasht, Iran

3 Professor of Psychology, Faculty of Literature and Humanities, University of Guilan, Rasht, Iran

10.22098/jrp.2025.16476.1279

Abstract

Body Dysmorphic Disorder (BDD) is a debilitating condition that significantly affects emotional well-being and self-esteem. This study examines the effectiveness of Unified Transdiagnostic Therapy (UTT) in improving emotional well-being and self-esteem in girls with BDD. The study utilized a quasi-experimental design with a pretest-posttest control group format. The statistical population included 28 adolescent girls diagnosed with BDD in Rasht in 2024. Participants were selected through convenience sampling and randomly assigned to either the intervention group (n=14) or the control group (n=14). The research instruments included the Obsessive-Compulsive Scale (BDD-YBOCS), Emotional Well-Being Scale (EWS), and the Rosenberg Self-Esteem Scale (RSS). The intervention group participated in eight weekly 90-minute UTT sessions, while the control group did not receive any intervention. Data were analyzed using MANCOVA in SPSS-27 software. The results showed that UTT significantly increased positive affect (F = 18.39) and self-esteem (F = 53.98), while substantially reducing BDD (F = 79.88) and negative affect (F = 53.37) in girls with the condition (P<0.001). UTT effectively enhances emotional well-being by increasing positive affect and reducing negative affect, while also boosting self-esteem and alleviating BDD. These findings highlight UTT as a comprehensive and effective intervention for addressing both emotional and psychological challenges in individuals with BDD, with significant implications for clinical practice.

Keywords

Journal of Research in Psychopathology

Articles in Press, Accepted Manuscript
Available Online from 08 June 2025

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