 After consent , has been obtained, parents will complete the Autism Disorders Interview-Revised ADI-R; Rutter LeCourteur, 1995 to determine eligibility and the Checklist for Autism Spectrum Disorder Mayes Calhoun, 1999, the Social Responsiveness Scale SRS; Constantino, 2002, and the Strengths and Difficulties Questionnaire SDQ; Goodman, 1997 at the initial appointment with the study coordinator. 