Cultural Adaptation and Validation of the Modified Checklist for Autism in Toddlers, Revised with Follow-up in Moroccan Arabic dialect.

Background: The prevalence of autism spectrum disorder is increasing worldwide, making screening and early intervention necessary. Several screening instruments have been developed in recent years. The Modified Checklist for Autism in Toddlers Revised with Follow-up (M-CHAT-R/F) is considered to be one of the specific measures designed to identify toddlers at risk for autistic spectrum disorder.