Examined five possible rules that children might use to interpret the terms "big" and "little." Increasing consistency in rule usage appeared to be the most significant developmental progression for children between the ages of three and five with respect to these terms. (Author/RH)

Three experiments in which photo or video presentations could guide one's search for a hidden object showed that under certain circumstances even 24-month-olds displayed representational insight. The first two experiments replicated earlier findings of chance performance across 4 trials, with 24-month-olds performing above chance in 3 of 4…

Findings suggest that semantic knowledge for concrete objects is represented and organized in similar ways in autistic, retarded, and normal children. Previous findings on cognitive deficits in autistic children are more likely related to their inability to use cognitive representations in an appropriate and flexible manner. (Author/RH)

Tested predictions of dynamic field theory in study of 3-year-olds' location memory errors in task with homogeneous task space. Found that young children's spatial memory responses are affected by delay- and experience-dependent processes as well as the geometric structure of the task space. Both dynamic field theory and category adjustment models…

Eight- to 12-month-olds might make A-not-B errors, knowing the object is in B but searching at A because of ancillary (attention, inhibitory, or motor memory) deficits, or they might genuinely believe the object is in A (conceptual deficit). This study examined how diligently infants searched for a hidden object they never found. An object was…

Strategies young children used to correct errors in nesting seriated cups changed substantially with age, becoming increasingly more flexible and involving more extensive restructuring of the relationships among the cups. The same trend toward increasing flexibility of thought and action also appeared in procedures children used to combine the…

The game of "Simon Says" was played individually with preschool and elementary school students. Errors decreased significantly with grade. (ST)

Tests the effects of stimulus variability on overgeneralization and overdiscrimination errors in children and adults. The subjects (n=64), adults and five-, seven-, and nine-year-old children, participated in a visual discrimination task. (CM)

Four experiments examined links and differences between children's copying line diagrams and drawing solid objects. Findings suggest that emphasis on order of line copying improves copying performance because line-to-line matching is an important element of the skill, whereas this does not aid drawing of the solid object, in which focus is…

Results reveal a relationship between two previously explored areas of inquiry: orientation errors in copying and preferences for the orientation of nonrealistic shapes. (Author)

Examines young children's awareness that an actor's intention to transfer possession or control is a necessary precondition for correct use of the verb "give". Ninety-six four- through six-year-olds were presented with anecdotes in which the actor's behavior was held constant but his subjective goal was varied. (Author/RH)

Examined in 2 studies the ability of 2- and 3-year-olds to learn to use tools via imitation. Found that when shown a correct solution to a tool-using task, all children managed at least a partial solution. When shown an incorrect followed by a correct solution, 2-year-olds produced a partial solution and most 3-year-olds produced a full solution.…

Results do not support Piaget's explanation of object conceptualization. (MB)

Grammatical sentences were easier to imitate than ungrammatical ones only when function words were included in the sentence; with function words absent, there was no significant difference. (Authors)