Third Wave Interventions for Adolescents with Mental Health Disorders: A Meta-Analysis

dc.contributor.authorSandery, Paul
dc.contributor.schoolSchool of Psychology
dc.date.issued2023
dc.descriptionThis item is only available electronically.en
dc.description.abstractLittle 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-analysisen
dc.description.dissertationThesis (Master of Psychology (Clinical)) -- University of Adelaide, School of Psychology, 2023
dc.identifier.urihttps://hdl.handle.net/2440/140974
dc.provenanceThis electronic version is made publicly available by the University of Adelaide in accordance with its open access policy for student theses. Copyright in this thesis remains with the author. This thesis may incorporate third party material which has been used by the author pursuant to Fair Dealing exceptions. If you are the author of this thesis and do not wish it to be made publicly available, or you are the owner of any included third party copyright material you wish to be removed from this electronic version, please complete the take down form located at: http://www.adelaide.edu.au/legals
dc.subjectMasters; Psychology; Clinicalen
dc.titleThird Wave Interventions for Adolescents with Mental Health Disorders: A Meta-Analysisen
dc.typeThesisen

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