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Johnson, Kathy E.; Scott, Paul; Mervis, Carolyn B. – Developmental Psychology, 1997
Four studies examined developmental differences in the representation of basic-subordinate inclusion relationships in three-, five-, and seven-year olds and undergraduates. Found that even three-year olds showed rudimentary knowledge of the asymmetry of inclusion. There was a marked developmental gap between producing subordinate category names…
Descriptors: Adults, Age Differences, Child Development, Children