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Peer reviewedGrieve, Robert; Garton, Alison – Journal of Experimental Child Psychology, 1981
Four-year-olds succeeded in making comparisons between sets of objects when comparison questions called for comparing set with set or subset with subset. However, when comparison questions called for comparing set with subset, the children failed to complete such tasks successfully. (Author/DB)
Descriptors: Cognitive Development, Concept Formation, Differences, Difficulty Level
Peer reviewedGoldfield, Eugene C.; Dickerson, Donald J. – Journal of Experimental Child Psychology, 1981
Infants 8.5 and 9.5 months of age were tested for ability to determine the location of an object hidden in one of two covered containers before their left-right positions were reversed. Only the older infants provided with different colored covers to their containers were able to do this task. (Author/DB)
Descriptors: Age Differences, Cognitive Processes, Concept Formation, Cues
Peer reviewedGrieve, Robert; Dow, Lucy – Journal of Experimental Child Psychology, 1981
Showed that in a task requiring judgments about the concept of "more" based on the relative numerosity of sets, three- to four-year-old children may base their judgments on such parameters as the extent to which the sets are homogeneous with respect to the color of their components. (Author/DB)
Descriptors: Child Language, Cognitive Processes, Concept Formation, Difficulty Level
