FOR INFORMATION REGARDING THE ORIGINAL M-CHAT, PLEASE READ BELOW.
The Modified Checklist for Autism in Toddlers (M-CHAT™; Robins, Fein, & Barton, 1999) is available for free download for clinical, research, and educational purposes. Please download this document for instructions for use. If you would prefer a version with a header added to collect name, date of birth, and other information, please download this version: M-CHAT with header.
The M-CHAT Follow-Up Interview™ is available for download here: M-CHAT Follow-Up. The interview is designed to reduce the false positive rate (false positive cases are children who fail the M-CHAT but do not have an autism spectrum disorder). It is highly recommended that M-CHAT users also incorporate the M-CHAT Follow-Up Interview into the screening process, given that recent findings demonstrate that the interview greatly reduces the false positive rate, which avoids unnecessary referrals. For more information, please refer to the following references: