This study explores the psychometric properties of data drawn from the Korean translation of the full "Scales of Independent Behavior--Revised" (SIB-R). In addition, semantic, content, conceptual, and technical equivalence are examined. The participants include 2,763 typically developing children and 406 children with intellectual disabilities residing in South Korea. The results reveal that data from the Korean SIB-R were reliable and could be used for valid decisions. This study provides empirical evidence that the Korean SIB-R is a useful assessment tool to measure adaptive behavior skills of children in South Korea. (Contains 5 tables.)