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Screening and Diagnostic Assessment
Autism diagnosis involves assessing a child’s behavior and development to determine if they meet the criteria for autism spectrum disorder (ASD). It is typically conducted by a physician or psychologist. In young children under age 3, this is sometimes referred to as early diagnosis. However, OTAI considers diagnosis that occurs around the same time as autism characteristics emerge to be “on-time,” supporting timely access to intervention and improved outcomes.
Screening
Screening for autism often occurs during well-child visits using tools like the Modified Checklist for Autism in Toddlers (M-CHAT). This simple questionnaire, recommended at 18- and 24-month checkups, helps identify potential signs of autism. Families can also make an account at as360.org and access the assessment at as360.org/assessment.
Diagnostic Assessment
If a screening indicates a high likelihood of autism, a diagnostic assessment by a specialist or team may follow. This involves observing behavior, conducting interviews, and using standardized tests to confirm a diagnosis.
Why On-Time Diagnosis Matters
On-time diagnosis supports intervention that can help children build communication, social, emotional, cognitive, and adaptive skills, preparing them for school and beyond. Trust your instincts and seek support if you suspect autism—it’s never too early to start.
FAQ for Caregivers or Providers:
Early autism screening helps to identify developmental concerns in young children. Catching these concerns early leads to better outcomes through timely interventions.
Screenings typically happen at regular check-ups (18 and 24 months), but if there are concerns, they can be done earlier.
Screenings usually involve questionnaires filled out by parents and observations by healthcare professionals to assess a child’s development.
Not passing a screening doesn’t mean a diagnosis. It indicates the need for further evaluation to better understand your child’s needs.
Helpful Resources:
Listening Corner:
Wellness Check:
We know this can be a lot to process. Take some time to listen to our mindfulness moment podcast episode and follow along with your ASD journey planner.
