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Abstract
We implemented a meta-analysis of randomized trials to estimate the treatment effect of mindfulness-based cognitive therapy in a group format compared to no treatment or alternative group interventions. We inspected moderators of effect size and estimated treatment effects over time across 31 studies with yielded mean effect sizes revealing large and medium effects for no treatment and alternative treatment comparisons, respectively. Moderator analyses revealed differential models for explaining variations in treatment effects related to age, percentage of men in studies, domicile, study setting, and type of alternative treatment comparison. Implications for group work and limitations of this study are discussed.
Additional information
Notes on contributors
A. Stephen Lenz
A. Stephen Lenz, Ph.D., L.P.C., is an assistant professor, and Joseph Hall, M.S., L.P.C. Intern, is a doctoral student, in the Department of Counseling and Educational Psychology at Texas A&M University–Corpus Christi.
Joseph Hall
A. Stephen Lenz, Ph.D., L.P.C., is an assistant professor, and Joseph Hall, M.S., L.P.C. Intern, is a doctoral student, in the Department of Counseling and Educational Psychology at Texas A&M University–Corpus Christi.
Laura Bailey Smith
Laura Bailey Smith, M.S., is a doctoral student is in the Department of Counseling and Educational Psychology at The University of Memphis.