Medically reviewed by Kira Graves, PhDAutism diagnosis in children often can be completed by age 2. It is based on traits and ...

This evaluation includes both an extensive interview of the child's primary caregivers (Autism Diagnostic Interview-Revised), and a structured interaction with the child (Autism Diagnostic Observation ...

Parents may notice that their infant avoids eye contact or doesn't respond, and it may be difficult for them to form emotional ... and the Autism Diagnostic Interview-Revised (ADI-R) tests for ...

The Autism Diagnostic Interview-Revised contains screening questions ... [1] The prevalence of all other forms of PDD combined may be roughly equal to that of autism.