🧩 Child health

Child 16-30 months, worried about autism? Start with M-CHAT-R

M-CHAT-R is the most widely used toddler autism screen, for ages 16-30 months. The parent who knows the child best answers 20 yes/no items, scored by risk: 0-2 low, 3-7 medium, 8-20 high. Its role is early detection — a positive screen is not a diagnosis but a prompt to see a child-health or developmental-behavioral professional soon. Free; scored locally.

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For toddlers 16-30 months; answered by the parent who knows the child best, based on usual behavior

Common questions

Does high risk mean my child has autism?
No. M-CHAT-R is a screen that indicates risk level, not a diagnosis. Even at high risk, a developmental-behavioral or child-health professional must confirm with an evaluation, structured interview and assessment. Early assessment avoids missing the window for support.
My child is younger than 16 or older than 30 months — can I use it?
M-CHAT-R is validated for 16-30 months. Outside that range results may be unreliable; consult a child-health or developmental-behavioral pediatrician for a more suitable assessment.
What if it shows medium risk?
In the proper workflow, medium risk needs a follow-up interview (M-CHAT-R/F), usually done by a professional. See a clinic for clarification rather than reassuring or alarming yourself on this result alone.

Take a couple of minutes for an autism screen

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This tool is for self-screening reference only. It does not constitute a diagnosis and does not replace an in-person assessment by a doctor. If you have concerns, seek care promptly.

Source: Modified Checklist for Autism in Toddlers, Revised (M-CHAT-R)

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