Among results comparing attainment of the conservation concept in blind (N=30), partially sighted (N=50), and sighted (N=40) children (ages 6-15) in Taiwan were that development of partially sighted children was more like the development of sighted than blind children, and that a 1-4 year developmental lag occurred in blind children. (Author/DB)

A total of 30 kindergarten and second, fourth, and sixth grade students from Taiwan and the United States were asked to make category inclusion and typicality judgments for 6 categories. Findings suggested that cultural familiarity with instances plays an important role in the development of category knowledge. (RH)