<qa>  What is the efficacy of cognitive behavioral therapy and selective serotonin-reupAnxiety disorders are among the most common conditions affecting children and adolescents. These disorders impair school, social, and family functioning. When left untreated, they also put children at risk for major depression and substance abuse in late adolescence and adulthood. Previous studies demonstrated the efficacy of cognitive behavioral therapy and selective serotonin-reuptake inhibitors for the treatment of child anxiety disorders. This study is testing the relative and combined efficacy of cognitive behavioral therapy and selective serotonin reuptake inhibitors as compared to each other and pill placebo. 