We appreciate the commendation offered by Lipkin, in his role as Chair of both the American Academy of Pediatrics Council on Children With Disabilities and the Policy Revision Committee for Developmental Surveillance and Screening, and Gwynn. The commendation serves to validate our intent and efforts with respect to our initial attempt to evaluate prospectively 2 parent-completed questionnaires relevant to developmental screening. Our efforts were motivated by observations that despite widely endorsed policy statements, practice constraints were limiting the widespread use of standardized screening tools, with the result being a lamentable late identification of developmentally impaired children.

To respond to Lipkin and Gwynn's specific questions, the pediatrician's opinion was evaluated as a modifier of concerns raised by the Ages and Stages Questionnaire and Child Development Inventory. Specifically, if the pediatrician was concerned by some aspect of the child's development, did this make it more likely that a...

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