|M-CHAT: Autism Questionnaire|
The M-CHAT is an expanded American version of the original CHAT from the U.K (Baron-Cohen et al., 1992; 1996). The M-CHAT has 23 questions using the original nine from the CHAT as its basis. The goal of the ongoing M-CHAT research is to demonstrate adequate psychometric properties of the M-CHAT (sensitivity, specificity, positive and negative predictive power).
The M-CHAT is available for clinical and research use, withthe following caveats:
1. Clinical use should proceed with caution, given that the current scoring system is designed to maximize sensitivity (i.e., identify as many children with autism spectrum disorders as possible), which results in a number of false positive cases (i.e., children who will not be diagnosed with an autism spectrum disorder, although they fail the M-CHAT). Once cross-validation of the M-CHAT iscomplete, the scoring may be revised.
2. The M-CHAT is not designed to detect all possible developmental disorders. Any parents who have concerns about their child should see their child’s physician, regardless on the child’s score on the M-CHAT.
Please fill out the following about how your child usually is. Please try to answer every question. If the behavior is rare (e.g., you've seen it once or twice), please answer as if the child does not do it.
M-CHAT Scoring Instructions
A child fails the checklist when 2 or more critical items are failed OR when any three items are failed. Yes/no answers convert to pass/fail responses. Below are listed the failed responses for each item on the M-CHAT. Bold capitalized items are CRITICAL items.
Not all children who fail the checklist will meet criteria for a diagnosis on the autism spectrum. However, children who fail the checklist should be evaluated in more depth by the physician or referred for a developmental evaluation with a specialist.
Please refer to: Robins, D., Fein, D., Barton, M., & Green, J. (2001). The Modified Checklist for Autism in Toddlers: An initialstudy investigating the early detection of autism and pervasive developmental disorders. Journal of Autism andDevelopmental Disorders, 31 (2), 131-144.
|Last Updated on Wednesday, 23 May 2007 12:08|