The Modified Checklist for Autism in Toddlers (M-CHAT™) is a scientifically validated tool for screening children between 16 and 30 months of age to assess their risk for autism spectrum disorder (ASD). It was developed by neuropsychologists Diana Robins and Deborah Fein and clinical psychologist Marianne Barton.
The American Academy of Pediatrics (AAP) recommends that all children receive autism screening at 18 and 24 months of age, and the M-CHAT is one of the AAP’s recommended tools. The M-CHAT’s primary goal is to detect as many cases of ASD as possible. Therefore, there is a high false positive rate, meaning that many children who score at risk for ASD will not be diagnosed with ASD. To address this, the authors developed a structured M-CHAT Follow-up Interview ™.
A child should be referred for further evaluation when any three answers suggest risk for ASD, as indicated by the list of ASD risk responses that follow the questions. Please answer questions to reflect your child’s usual behaviors. If the behavior is rare (e.g., you've seen it only once or twice), answer as if the child has not acquired the behavior.
Modified Checklist for Autism in Toddlers (M-CHAT™)
M-Chat Follow up Interview™
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