Autism spectrum disorders can usually be reliably diagnosed by age 3, although new research is pushing back the age of diagnosis to as early as 6 months. Parents are usually the first to notice unusual behaviors in their child or their child’s failure to reach appropriate developmental milestones. New research shows that when parents suspect something is wrong with their child, they are usually correct. If you have concerns about your child’s development, don’t wait: speak to your pediatrician about getting your child screened for autism. The earlier the diagnosis is made, the earlier interventions can begin.