Modified Checklist for Autism in Toddlers Revised (M-CHAT-R) Follow-Up Interview is to be used by clinicians to help rule out a diagnosis of autism by reviewing the original respondent's responses to the M-CHAT-R® questionnaire. The administration of this follow-up interview is important in that it has been shown to reduce over-referral. 

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18-36 months

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Available in English and French (Canada)

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