Tool: Modified Checklist for Autism in Toddlers, Revised with Follow-Up (M-CHAT-R/F)
The Modified Checklist for Autism in Toddlers — Revised, with Follow-Up (M-CHAT-R/F) — is a free, two-step screening tool used to detect children likely to have autism. It is intended for use at regular well-child checkups for children 16 to 30 months old. With the M-CHAT-R/F, health care providers can classify a child’s risk of having autism as low, medium or high, on the basis of parents’ answers to 20 questions. The free tool is available online in more than 45 languages.