Journal of Pediatric Psychology 12(3) pp. 445-450, 1987
© 1987 Society of Pediatric Psychology
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Age Adjustment in Psychological Assessment of Children Born Prematurely
Child Development Center University of Tennessee, Memphis
Most studies of the development of premature infants are done using an adjusted or "corrected" age. The adjustment is made by subtracting the number of weeks by which the infant was premature from the unadjusted ("postnatal") age to estimate the age the infant would have been if born at term. Very little empirical research has been done to establish the validity of this procedure, nor have most authors given a rationale for its use other than its commonsense appeal. This article reviews pertinent studies and provides a psychometric rationale for such age adjustment.
Key words: prematurity; conceptional age; postnatal age; age correction.
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