Which age group is the M-CHAT specifically designed to screen?

The M-CHAT, or Modified Checklist for Autism in Toddlers, is specifically designed to screen children between the ages of 16 to 30 months. This age range is critical for the identification of potential developmental delays related to autism spectrum disorder.

During this stage of development, children are beginning to exhibit more social behaviors and communication skills that can be indicative of autism. The M-CHAT contains a series of questions aimed at identifying signs and symptoms that are commonly associated with autism in toddlers, making it an essential tool for early screening and timely intervention.

Screening before 16 months may not yield reliable results since many of the behaviors associated with autism are not fully observable or are still developing. Conversely, the tool is not designed for children aged 5 years and older, as their developmental milestones and social interactions significantly differ from those of toddlers. Therefore, 16 to 30 months is the precise window where the M-CHAT is intended to be utilized effectively.