Screening/Assessment



There are many tools used to diagnose or support the diagnosis of ASD.  Screening tools are used to identify potential risk for ASD in children.  These tools cannot diagnose autism, and a result of "high risk" is not necessarily an indicator of an ASD diagnosis.  If your child receives a score that indicates high risk, please speak to your family doctor or pediatrician to receive further diagnostic testing.

Please click the links below to be directed to the pages discussing four commonly used screening tools:

Modified Checklist for Autism in Toddlers Revised (M-CHAT-R)
Social Communication Questionnaire (SCQ)
Ages and Stages Questionnaire, Third Edition (ASQ-3)
Ages and Stages Questionnaire:SE-2 (ASQ:SE-2)

The following is a list of free online tools that can help to assess the risk for ASD.  For parents accessing these screening tools, please do not use these tools to self-diagnose your child.  Please take the results of these tools to your family doctor for further diagnostic screening.

Toddler (16 to 30 Months)
Modified Checklist for Autism in Toddlers (16 to 30 Months), Revised
Nipissing Developmental Screening Tool

Child (Ages 3 to 11 Years)
The Childhood Autism Spectrum Test (CAST)
Nipissing Developmental Screening Tool

Adolescence (Ages 12 to 18 Years)
The Adolescent Autism (Ages 12 to 15 Years) Spectrum Quotient (AQ)
The Adult Autism Spectrum Quotient (AQ) 
Nipissing Developmental Screening Tool

The following are a list of paid observation and screening tools that professionals can use to help in diagnosing your child with ASD (list compiled by Autism Canada, 2018)


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