We conducted a meta-analysis using all available controlled treatment outcome studies of cognitivebehavioral and pharmacological treatments for social phobia (N = 24 studies, N = 1079 subjects). The mean social anxiety effect size for cognitive-behavioral treatments was .74 and for pharmacological treatments was .62. Both were significantly different from zero and the difference between them was not significant. Among cognitive-behavioral treatments, exposure-interventions yielded the largest effect size (ES) whether alone (ES = .89) or combined with cognitive restructuring (ES = .SO). Selective serotonin reuptake inhibitors (ES = 1.89) and benzodiazepines (ES = .72) yielded the largest effect sizes for phannacotherapy. According to cost projections, p u p cognitive-behavioral treatment offered the most cost-effective intervention.
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