what age can mchat r be used
The Modified Checklist for Autism in Toddlers â Revised, with Follow-Up (M-CHATâR/F) â 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 childâs risk of having autism as low, medium or high, on the basis of parentsâ answers to 20 questions.