Professor Smith then tested a group of 8-month-old infants who were born two months before their due dates. This group matched the full-term 6-month-old infants he previously tested in

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Quizplus · Accepted Answer

Conceptional age is the best choice because it measures an infant's age based on the number of weeks since conception, rather than the number of weeks since birth. Since the infants in this group were born two months before their due dates, their postnatal age would only be six months, but their conceptional age would be eight months. By using conceptional age, the group of premature infants can be compared more accurately to the full-term infants who were also tested at six months post-conception.

Professor Smith Then Tested a Group of 8-Month-Old Infants Who