Effects of cognitive-behavioral therapy on anxiety in children with autism spectrum disorders: a randomized controlled trial.

We compared the effects of a 16-week Cognitive-Behavioral Therapy (CBT) program and a Social Recreational (SR) program on anxiety in children with Autism Spectrum Disorders (ASD). Seventy children (9-16 years old) were randomly assigned to either of the programs (n (CBT) = 36; n (SR) = 34). Measures on child's anxiety using the Spence Child Anxiety Scale--Child (SCAS-C) and the Clinical Global Impression-Severity scale (CGI--S) were administered at pre-, post-treatment, and follow-ups (3- and 6-month).