Stability of the Bayley mental scale of infant development with high risk infants

This study examines stability of scores on the Bayley Mental Scale of Infant Development Second Edition (BSID-II) across the first two years of life for high risk infants. BSID-II scores in the first and second year of life for 16 infants with Down syndrome and 17 medically fragile infants were compared to Bayley Mental Scale of Infant Development (BSID) scores for 33 matched infants. A three-way interaction of Group, Time, and Bayley Version …