Modified Checklist for Autism in Toddlers, Revised, with Follow-up (M-CHAT-R/F™)

The M-CHAT-R/F™ is a 2-stage parent-report screening tool to assess risk for autism spectrum disorder (ASD). It can be used for clinical, research, and education purposes, including as part of a well-child care visit or by specialists or other professionals to assess risk for ASD. It is validated for use with children 16–30 months of age.