Abstract
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 published studies and 8 doctoral dissertations that used GCBT as a therapeutic intervention to reduce general symptomatology. A total of 134 effect sizes yielded an overall pre-to posttreatment weighted mean effect size of. 77 for a wide range of symptomatology treated with GCBT. Twelve of the 30 studies included a no-treatment control group, and these studies yielded a weighted mean effect size of. 13 when comparing pre-and posttreatment levels of symptomatology. Implications for group work practice and research are discussed.
Published Version
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