摘要：Stability of the Korean Bayley Scale of Infant Development-II was tested in 305 infants by two measurements of varying intervals over a span of 5-36 months. Stability of K- BSID-I performance was r=.62(p<.01),r= 08(p<.18),r-.69(p<.01),r=.18(p<.01) for mental scale raw scores,mental scale index scores (MDI),psycho-motor scale TaW scores and psycho-motor scale index scores(PDI),respectively. Stability was higher for the shorter test-retet interval group. Correlations between raw scores among infants with tetest intervals of more than 2 years were stable on both mental and psycho-motor scales. MDI showed higher stability armong high-risk infants than normal infants while PDI showed higher stability among normal infants. Testers and researchers should use both raw scores and index scores for better interpretations..
