MCHAT

M-CHAT-R/F Score: { } ({Low Risk}{*Medium Risk*}{**High Risk**})

// --- Scoring Algorithm ---

// For all items except 2, 5, and 12, the response “NO” indicates ASD risk; for items 2, 5, and 12, “YES”  indicates ASD risk. The following algorithm maximizes psychometric properties of the M-CHAT-R:

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// LOW-RISK: Total Score is 0-2; if child is younger than 24 months, screen again after second birthday. No further action required unless surveillance indicates risk for ASD.

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// MEDIUM-RISK: Total Score is 3-7; Administer the Follow-Up (second stage of M-CHAT-R/F) to get additional information about at-risk responses. If M-CHAT-R/F score remains at 2 or higher, the child has screened positive. Action required: refer child for diagnostic evaluation and eligibility evaluation for early intervention. If score on Follow-Up is 0-1, child has screened negative. No further action required unless surveillance indicates risk for ASD. Child should be rescreened at future well-child visits.

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// HIGH-RISK: Total Score is 8-20; It is acceptable to bypass the Follow-Up and refer immediately for diagnostic evaluation and eligibility evaluation for early intervention.