Objective: Rates of nonattendance for psychotherapy hinder the effective delivery of evidence-based treatments. Although many strategies have been developed to increase attendance, the effectiveness of these strategies has not been quantified. Our aim in the present study was to undertake a meta-analysis of rigorously controlled studies to…

Objective: The present study identifies and summarizes treatment effects for children and adolescent conduct problems based on accrued meta-analytic studies. Method: Systematic search and coding procedures were used to summarize studies from 1980 to 2007. Results: A total of 26 meta-analytic reviews composed of nearly 2,000 studies revealed…

Analyses of the efficacy of group psychotherapy indicate that group therapy demonstrates, in a majority of reviews, significant improvement over inert comparison groups and proves comparable or superior to other active treatment conditions. Because group therapy is a viable cost-efficient treatment option being used with increasing regularity…

Objectives: This meta-analysis evaluates treatment effects for nonpsychotic major depression during pregnancy and postpartum comparing interventions by type and timing. Methods: Studies for decreasing depressive severity during pregnancy and postpartum applying treatment trials and standardized measures were included. Standardized mean differences…

Outcome studies support the effectiveness of cognitive-behavioral approaches for treating various emotional and behavioral problems. The effectiveness of group cognitive-behavioral therapy (GCBT) has received less empirical attention. The current investigation employed meta-analytic procedures to examine various effects from a total of 22…