Inclusion Criteria- Child:  Increased risk for Autism Spectrum Disorder (ASD) defined as:  positive Modified Checklist for Autism in Toddlers-Revised (MCHAT) (score greater than 3); OR having a sibling or parent with ASD; OR history of prematurity (gestational age less or equal 34 weeks); OR other provider or parent concern for ASD. Child age 18-36 months  Exclusion Criteria- Child:  previous ASD diagnosis previous negative ASD evaluation known seizure disorder vision impairment hearing impairment  Inclusion Criteria- Parent  - Parent or legal guardian of the children  Exclusion Criteria- Parent  - Not a Parent or legal guardian of the child