International Journal of Humanities and Social Science

ISSN 2220-8488 (Print), 2221-0989 (Online) 10.30845/ijhss

The Effectiveness of Acceptance and Commitment Therapy on the Improving of Resilience and Optimism in Adolescents with Major Depressive Disorder
Negin Towsyfyan, Farideh Hossein Sabet

Abstract
Background and Objective: In today's society, depression is one of the most prevalent types of psychological disorders which is also so common among adolescents. The goal of this research was the study of effectiveness of Acceptance and Commitment Therapy (ACT) on the improving of resilience and optimism in adolescents with major depressive disorder. Materials and Methods: This study was conducted semi-experimentally with pretestposttest control group design and two months follow up period. According to the inclusion criteria 16 adolescent girls with major depressive disorder was selected through availability sampling and then randomly assigned into two experimental and control eight member groups. In order to evaluate the variables, Connor-Davidson Resilience Scale (CD-RISC) and Life Orientation Test-Revised (LOT-R) were applied. Adolescents in experimental group were treated by Acceptance and Commitment Therapy in eight sessions, each lasted 60-90 minutes. Data were analyzed by using the SPSS-23 software and analysis of variance with repeated measures statistical method. Results: The findings showed that Acceptance and Commitment Therapy has had significant effect on the improving of resilience and optimism. This also persisted in the follow up period. Conclusion: According to the results of this research, the use of Acceptance and Commitment Therapy in order to improve resilience and optimism in adolescents with major depressive disorder is recommended to all psychologists, consultants and psychiatrists of private and governmental treatment centers, and also consultants of schools and educational centers.

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