To investigate how a child organizes new objects and how categories function for a chid, twelve 6- and twelve 8-year-olds were individually given several sorting tasks involving 21 three-dimensional nonsense objects. The child was exposed to all the objects; three objects were pointed out and withdrawn; and then the child was asked to describe…

The most significant finding is that classification according to complete similarity not only occurs much earlier than reported by Inhelder and Piaget, but also does not follow the developmental course reported by Inhelder and Piaget. (Author)

Study concerned with the question of why older children remember more in categorized free recall. (Authors/MB)

Purpose of these four experiments was to elucidate the role of grouping in remembering words by using single-trial free recall. (Author/CB)

Second, fourth, and sixth graders were trained under conditions of Constrained and Cued recall on a list of randomly ordered nouns comprising 4 categories of things. (Authors)

Piaget, in describing the sequence of classificatory development, describes class inclusion as composed of two processes; hierarchical classification and post-whole comparisons. In the experiment reported here, elementary school children, trained in the concept of sets in first grade mathematics were given a task where they were required to assess…