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The M-CHAT-R/F is a two-stage parent-report toddler screening tool with a structured follow-up process. Use the official instructions and discuss results with a healthcare professional.

Based on Official M-CHAT-R/F website · M-CHAT-R/F · CDC · All sources · Checked November 3, 2026
The Modified Checklist for Autism in Toddlers, Revised, with Follow-Up (M-CHAT-R/F) is a parent-completed questionnaire designed to identify toddlers who may benefit from a closer look for autism. It has two stages: a questionnaire, and a structured follow-up for some results.
This website provides general educational information. It does not diagnose autism or replace individualized medical, developmental, psychological, or educational advice. Screening is not diagnosis.
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