The cutoff scores do differ between the 9 month and 10 month questionnaire intervals. The developers added the 9 month questionnaire with the third edition of ASQ in 2009, primarily to meet the needs of pediatricians following the American Academy of Pediatrics’ recommendations to screen at 9, 18, and 30 months. Rese…
The 9 month questionnaire interval was added to the third edition of ASQ to assist with pediatricians' use of screening tools at the 9, 18, and 30 month visits per the AAP policy statement on screening . There is an overlap between the age administration windows for the 9 and 10 month questionnaires, and your progra…