Volume 12 Num. 3 - October 2012
Acceptance and Commitment Therapy versus Traditional Cognitive Behavioral Therapy: A Systematic Review and Meta-analysis of Current Empirical Evidence
Volume 12 Num. 3 - October 2012 - Pages 333-357
Francisco J. Ruiz
Controversy remains about the empirical status of acceptance and commitment therapy (ACT) and its presumably different characteristics relative to traditional cognitive behavioral therapy (CBT). The current study aims to shed some light in this respect by conducting a systematic review and meta-analysis of the studies that have empirically compared ACT versus CBT. Sixteen studies comparing differential outcomes (N= 954) of ACT versus CBT in diverse problems were identified following several search strategies. The meta-analysis, which applied random and mixed effects models, showed that mean effect sizes on primary outcomes significantly favored ACT (Hedges?s g= 0.40). Mean effect sizes were not significant with anxiety symptoms whereas a positive trend for ACT was obtained in depression (g= 0.27) and quality of life (g= 0.25) at post-treatment. Likewise, ACT showed a greater impact on its putative processes of change (g= 0.39) and no differences were found regarding CBT proposed processes (g= 0.02). Nine studies conducted formal mediation analyses. Overall, ACT seemed to work through its proposed processes of change but CBT did not. Results are discussed highlighting the limitations of the current empirical evidence but also emphasizing the relevance of the current findings.
Acceptance and Commitment Therapy, Cognitive Behavioral Therapy, systematic review, meta-analysis, mediation analysis.
More articles in this volume
- [301-332] Doctrines about Life and a Relational Frame Analysis of Zen: Demythologization of Zen, Meditation and Nirvana
- [359-372] A Review of Acceptance and Commitment Therapy with Anxiety Disorders
- [373-388] A Review of psychological intervention in Alzheimer?s disease
- [405-414] Psychosocial profile of bariatric surgery candidates and the correlation between obesity level and psychological variables
- [415-426] Profile of Personal Values for Health Sciences Students
- [453-479] A Comparative Study of Journals Quality based on Web of Science, Scopus and Google Scholar: A Case Study with IJP&PT