Third Wave Interventions for Adolescents with Mental Health Disorders: A Meta-Analysis
Date
2023
Authors
Sandery, Paul
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Thesis
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Abstract
Little is known about the efficacy and effectiveness of third wave interventions for adolescents with mental health disorders. This study reviewed the empirical evidence for third wave interventions (mindfulness-based cognitive therapy [MBCT], mindfulness-based stress reduction [MBSR], acceptance and commitment therapy [ACT], dialectical behaviour therapy [DBT], and compassion focused therapy [CFT]) in clinical adolescent populations. Five databases were systematically searched for controlled and uncontrolled studies that had evaluated MBCT, MBSR, ACT, DBT, or CFT with adolescents with mental health disorders. Risk of bias was assessed using the QualSyst tool and effect sizes (Hedges’ g) were calculated with associated p-values, 95% confidence intervals, and prediction intervals. Twelve studies, comprising a pooled sample of 584 adolescents and all evaluating DBT, were identified. Studies were mostly of sound methodological quality. Significant and large pooled effect sizes were found for all six mental health outcomes (depression, anxiety, emotional regulation, suicidal ideation, self-harm, and borderline personality disorder [BPD] symptoms) at post-intervention. However, variability in treatment response across studies was evident. Effect estimates were also less pronounced in between-group designs, particularly at follow-up. No moderation was observed by DBT intensity or duration. While DBT is effective in reducing psychological symptoms in adolescents with mental health disorders, more rigorous, controlled studies are needed to draw more reliable conclusions about the efficacy of DBT in such populations. Greater research in more diverse adolescent samples and with other third wave interventions (e.g., ACT, MBCT) is also warranted. Keywords: third wave intervention, dialectical behavior therapy, adolescent, mental health, meta-analysis
School/Discipline
School of Psychology
Dissertation Note
Thesis (Master of Psychology (Clinical)) -- University of Adelaide, School of Psychology, 2023
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