Effectiveness of Brief and Standard School-Based Cognitive-Behavioral Interventions for Adolescents With Anxiety: A Randomized Noninferiority Study

ObjectiveWe examined the effectiveness of targeted school-based cognitive-behavioral therapy (CBT) for adolescents (12−16 years of age) with anxiety, and tested whether brief CBT was noninferior to standard duration CBT.MethodA randomized controlled study of 313 adolescents (mean 14.0 years, SD = 0.84, 84% girls) were recruited through school health services to 10 weeks CBT group interventions. Groups of 5 to 8 adolescents were randomly...