Styles of categorization among lower-class kindergarten children [electronic resource] / Patricia Olmsted and Irving Sigel.

Based upon work with middle-class adults and children, three approaches to grouping have been identified--(1) descriptive part-whole, (2) relational-contextual, and (3) categorical-inferential. A comparison was made of the frequency of the use of these approaches among middle- and lower-class, negro...

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