<qa>  What is the screening critimeter?3. Students: Any student enrolled in grades 4-8 in one of the participating schools, who had been referred to the STS program in their school and who meets study screening and diagnostic criteria. The screening criterion is a Total score 25 on Screen for Child Anxiety Related Disorders SCARED completed by a parent or school staff member. This student must also present a primary positive or intermediate diagnosis of Separation Anxiety Disorder SAD Generalized Anxiety Disorder GAD, or Social Phobia SP on the Anxiety Disorders Interview Schedule ADIS; completed by a parent during the eligibility evaluation. 