First and fifth graders in two IQ groupings reconstructed pictures which were variations on a prototypic picture. In subsequent recognition, children gave confidence ratings on the "oldness" of the pictures. Prototypes were recognized with most confidence. Younger and lower IQ children were less sure about noncases being "new".…

Using cross classifiable pictures, this study assessed taxonomic and thematic clustering in free recall in 240 children, ages seven and ten. The effects of both free and constrained test conditions and developmental, ethnic, and socioeconomic differences, were examined. (BS)

Six studies investigated the use of pictorial material in a group setting to measure the cognitive level of children (age 7 to 11) on eight Piagetian concepts. Children were low to middle socioeconomic status with 60 percent Spanish surnames. Factor analysis and clinical administration supported test validity. (Author/CTM)

Two tests of cognitive development, the Cartoon Conservation Scales, Levels I and II, were designed to measure Piagetian stage-related constructs for children of different age groups. The tests were factor analyzed within age levels and were also analyzed using scalogram and tabular methods to test sequential hypotheses. (Author/CTM)

This study identified behaviors of sibling pairs interacting on a cognitive task and related these behaviors to sibling structure variables (age and sex of each sibling and age spacing between them) and to measure of cognitive abilities of the younger sibling. Subjects were 160 sibling pairs randomly selected from appropriate subpopulations of…