title: Concurrent and predictive validities of the Bayley Motor Scale and the Peabody Developmental Motor Scales.
abstract: Concurrent and predictive validities of the Bayley Motor Scale and the Peabody Developmental Motor Scales were examined by administering both tests to 23 full-term and 21 healthy premature infants at 12, 15, and 18 months of age. For both groups, a correlation analysis of age-equivalent scores indicated Bayley scores had good to high correlation with Peabody gross motor scores (range, r = .78 to r = .96) and unacceptable correlation with Peabody fine motor scores (range, r = .20 to r = .57). When results were reported using standardized quotients, mean Bayley quotients for the full-term infant group were significantly higher than Peabody gross motor quotients. Prediction of motor development at 18 months of age was limited (range, r = .25 to r = .60), with the exception of Peabody fine motor scores for the premature infant group (r = .75). This study provides evidence of concurrent validity between Bayley motor and Peabody gross motor age-equivalent scores, and it suggests the need for further testing, using separate assessments of gross motor and fine motor ability, to determine motor development at later ages.
mesh_terms: D002657:Child Development; D002658:Developmental Disabilities / Q000175:diagnosis; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D009048:Motor Skills; D009483:Neuropsychological Tests / Q000592:standards; D011594:Psychometrics