Modified Checklist for Autism in Toddlers (M-CHAT) 23 yes-no questions Measures social reciprocity, language, some motor 18 months to 4 years of age Detects ASD, language impairment, MR Available over 20 languages
Failing scare if 2 or more critical items or any 3 times are failed “at risk” needs further evaluation Can’t be used in child >3yo AAP Caring for Children with Autism Spectrum Disorders: A Resource Toolkit for Clinicians.