mchat guideline

the modified checklist for autism in toddlers, revised with follow-up (m-chat-r/f; robins, fein, &barton, 2009) is a 2-stage parent-report screening tool to assess risk for autism spectrum disorder(asd). the m-chat-r/f is available for free download for clinical, research, and educational purposes.download of the m-chat-r/f and related material is authorized from www.mchatscreen.com.