 Intervention: This study is designed to test: a the effectiveness of an adapted version of a group cognitive behavioral therapy program aFRIENDS compared to the original version of this program FRIENDS, and b the effectiveness of two implementation support strategies for aFRIENDS: Train-the-Trainer and Train-the-Trainer Plus. aFRIENDS is a shorter, more culturally sensitive, focused, and feasible CBT for anxiety in children than FRIENDS and addresses one of the major barriers to implementation intervention-context fit. 