The Bayley Scales of Infant and Toddler Development (BSITD-III; Bayley, 2006) are widely used to evaluate children development from 0 to 3 years old. At the moment no data from an Italian sample are available. This paper presents data from an Italian sample of 67 preterm children (PI) assessed at 12 months Corrected Age, compared with 66 same age full term Italian children (TI). The Italian preterm sample has also been compared with the standardized American sample of preterm children. The results indicate that PI performances are significantly lower than full term Italian infants in the Cognitive and Motor Scales and in the Subscales Fine Motor and Linguistic Production. Moreover, PI performances are better than the PA in the Cognitive and Socio-emotional Scales, and in the Receptive Language sub-scale. Conversely, PA are better than PI in the Motor Scale and in the Fine Motor Subscale. The differences observed in these results underline the necessity of a normative Italian sample for BSITD-III appropriate utilization.
Keywords: Test, Bayley-III, preterm, infants, children development, assessment