Concurrent validity of the Bayley-III and the Peabody Developmental Motor Scale-2

Pediatr Phys Ther. 2012 Winter;24(4):345-52. doi: 10.1097/PEP.0b013e318267c5cf.

Abstract

Purpose: To determine concurrent validity of the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III) and the Peabody Developmental Motor Scales, Second Edition (PDMS-2).

Method: Tests were administered to 48 children with corrected age ranging from 29 days to 26 months. Concurrent validity between age-equivalent (AE) scores and standard scores was assessed for 4 age groups.

Results: Moderate to very high correlation for all groups was found between the Bayley-III composite scores and the PDMS-2 Total Motor quotient scores. High correlations were found between the Bayley-III composite scores and the PDMS-2 Gross and Fine Motor quotients (12-26 months); high correlations were found between the Bayley-III and the PDMS-2 Gross Motor quotient (6-12 months) and moderate correlations were found for younger age groups. High concurrent validity for AE scores was found only above 18 months.

Conclusions: The study supports the substitution of the Bayley-III for the PDMS-2 for standard scores or AE scores for children aged 19 to 26 months and for standard scores for children birth to 18 months.

Publication types

  • Validation Study

MeSH terms

  • Adolescent
  • Child
  • Child, Preschool
  • Developmental Disabilities / diagnosis*
  • Developmental Disabilities / pathology
  • Female
  • Growth and Development / physiology*
  • Humans
  • Infant
  • Infant, Newborn
  • Male
  • Motor Skills / physiology*
  • Neuropsychological Tests*
  • Psychometrics
  • Reproducibility of Results