A 19-month-old boy has a positive result on the Modified Checklist for Autism in Toddlers (M-CHAT-R/F) screen. What does this indicate?

Choice A reason: A positive M-CHAT-R/F does not confirm a diagnosis of autism. It is a screening tool, not a diagnostic tool. Choice B reason: While the child may have developmental concerns, a positive screen alone does not definitively indicate a developmental delay. Further assessment is necessary. Choice C reason: A positive M-CHAT-R/F result indicates that the child is at risk for ASD or developmental delays and should be referred for a comprehensive evaluation to confirm diagnosis and guide early intervention. Choice D reason: Placement in ABA therapy should only follow a confirmed diagnosis of ASD. Immediate referral to therapy without assessment is premature.