This study was designed to explore behavior and developmental evaluation in preterms at risk, full-terms at risk, and normal infants. Specifically the purposes of the study were to investigate behavior rating scale based on Korean Bayley Scales of Infant Development-Ⅱ(K-BSID-Ⅱ)(2004). The subjects were 146 infants, 49 preterms at risk infants, 48 full-terms at risk infants and 49 normal infants. The data were analyzed through Kruskal-Wallis, a correlation and multiple regrression test to examine the behavioral ratings. It was shown that there were significant differences among three groups in attention/arousal, orientation/engagement and motor quality and the sum of the behavior rating scale. In the terms of behavior rating scale, mental developmental index and psychomotor developmental index, preterms at risk-, full-terms at risk-, and normal infants showed substantial corrrelations to each other. Authors discussed in terms of perspectives om welfare for the disabled and future infant developmental study.
Keywords: Korean Bayley Scales of Infant Development-Ⅱ, mental scale, motor scale, behavior rating scale, preterm at-risk infants, fullterm at-risk infants