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Understanding the M-CHAT-R/F

Understanding the M-CHAT-R/F

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

2 stagesa parent-completed questionnaire, then a structured follow-up for some resultsM-CHAT-R/F
Freeto download from the authors’ website; appointments and evaluations may costM-CHAT-R/F authors
Not a diagnosisa result helps decide whether a full evaluation is neededCDC

What is the M-CHAT-R/F?

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.

How to use it

  • Use the official version and instructions from the M-CHAT-R/F website.
  • Share the result with your child’s health care provider.
  • Remember that a screening result is not a diagnosis — it helps decide whether a full evaluation is needed.
To protect the tool’s accuracy, Autism Family links to the official M-CHAT-R/F rather than copying its questions. The authors restrict changes and electronic republishing.
Take the M-CHAT (Free)

This website provides general educational information. It does not diagnose autism or replace individualized medical, developmental, psychological, or educational advice. Screening is not diagnosis.

External listings do not imply affiliation, endorsement, or guaranteed services. Eligibility, availability, costs, and insurance coverage may change. Research summaries reflect evidence available at the time of review.