Brief Report: Performance of Australian Children at One Year of Age on the Bayley Scales of Infant and Toddler Development (Version III)

This article reports mean scores on the Bayley Scales of Infant and Toddler Development (Version III) for 211 randomly selected healthy term (≥ 37 weeks gestation) Australian infants at one year of age. Mean scores were significantly different from standardised norms in all subscales except fine motor. Australian infants scored higher on cognitive and receptive language (p < .01) and lower on expressive language and gross motor (ps < .01) subscales. These findings raise questions regarding the validity of this test in the Australian population and suggest that the test be re-normed on Australian children for valid interpretation of scores in this cultural context.