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][1]. There is an overlap between the age administration windows for the 9 and 10 month questionnaires, and your prog…
When rescreening, the questionnaire used depends upon the age of child and the questionnaire's administration window. You should use the age-appropriate questionnaire when rescreening. You may decide to rescreen with the same questionnaire if the child remains in the age administration window and, if the child passes …