In cases such as these, we recommend averaging the two dates and using the average to determine the child's adjusted age. In many cases, the difference may not affect the questionnaire interval used.
When is comes to screening, accuracy is important. Don't second guess your by-hand calculations—use our online calculator instead! Always choose the right questionnaire for a child's age with the ASQ Calculator . Simply enter the ASQ administration date, the child's date of birth, and the number of weeks the child …