An open access journal
The Efficacy of Acceptance and Commitment Therapy (ACT) for Generalized Anxiety Disorder (GAD): A Meta-Analysis of Randomized Controlled Trials
Abstract
Acceptance and Commitment Therapy (ACT) has gained recognition as an effective intervention for Generalized Anxiety Disorder (GAD), focusing on enhancing psychological flexibility and promoting values-based living. This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of ACT in reducing GAD symptoms and improving overall functioning in individuals with GAD. Through an extensive literature review, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of ACT compared to control conditions (e.g., waitlist, treatment as usual, other psychotherapies) in targeting symptoms of GAD, including excessive worry, physical tension, cognitive disturbances, and avoidance behaviors. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, therapist experience, treatment format (individual vs. group), and participant characteristics (e.g., age, comorbidities), to better understand the factors influencing the effectiveness of ACT for GAD.
Share and Cite
Article Metrics
References
- Hayes, S. C., et al. (2011). Acceptance and commitment therapy: Model, processes, and outcomes. Behaviour Research and Therapy, 44(1), 1-25.
- Roemer, L., et al. (2009). A preliminary investigation of the role of strategic withholding of emotions in PTSD. Journal of Traumatic Stress, 22(5), 400-405.
- Twohig, M. P., et al. (2010). A randomized clinical trial of acceptance and commitment therapy versus progressive relaxation training for obsessive-compulsive disorder. Journal of Consulting and Clinical Psychology, 78(5), 705-716.
- Arch, J. J., et al. (2012). Acceptance and commitment therapy for the treatment of anxiety disorders: A concise review. Current Opinion in Psychiatry, 25(2), 127-132.
- Eifert, G. H., et al. (2006). Acceptance and commitment therapy for anxiety disorders: Three case studies exemplifying a unified treatment protocol. Cognitive and Behavioral Practice, 13(4), 324-335.
- Zettle, R. D., et al. (2015). ACT for OCD: A randomized controlled trial of acceptance and commitment therapy versus exposure and response prevention. Journal of Consulting and Clinical Psychology, 83(5), 1013-1026.