Two naming tasks were simultaneously presented to either one visual field/hemisphere combination or were divided between visual fields/hemispheres. Hypotheses that bilateral presentation would improve performance by insulating conflicting tasks from mutual interference and that there would be a developmental shift in the bilateral advantage was…

Results of three experiments support the conclusion that tasks involving the localization of objects or events from mirror images are not direct indices of self-recognition among children between 14 and 22 months of age. Rather, they indicate the skill of infants in using the mirror as a perceptual tool. (RH)

Children's ability to produce integrated sequences of discrete behaviors was examined as a function of age and task demands for several behavioral domains. Results are discussed in terms of possible age-related constraints on combinatorial skills that operate at a general, cross-domain level during toddlerhood. (RH)

Two experiments investigated 18- to 30-month-old children's memory for the location of a hidden object. Memory performance was significantly better when the object was hidden within the natural environment as opposed to when hidden in a set of boxes. Older subjects effectively used a landmark cue as a memory aid. (Author/RH)

First- and fifth-grade children were presented a hypothetical case in which a child, who circumstantial evidence suggests might have committed a "crime," is punished by a parent. Subjects were asked to indicate whether or not they believed the punishment to be fair and the child guilty. (Author/RH)

Two experiments investigated young children's ability to use the spatial context in which objects are encountered to aid later recall of the objects themselves. Results indicated that, at least in meaningful situations, the ability to use the spatial context of items to facilitate item recall is present from a very early age. (Author/RH)

Examined children's recall of the spatial configurations of an environment after the children followed prearranged paths and encountered barriers to movement. When asked to reconstruct the environmental configuration from memory, males estimated distances more accurately than did females. No age differences were noted. (Author/DB)

Assessing Markman's hypothesis that the organizational principles underlying collection concepts facilitate children's performance on cognitive tasks requiring part-whole comparisons, three experiments indicated that the facilitative effect of collection labels appears to be specific to the class-inclusion task. Results suggest that Markman's…

Tests the hypothesis that high-SES children process information more efficiently using mechanisms associated with the left hemisphere and that low-SES children process more efficiently using the right. A laterality task was administered tachistoscopically to 120 children, divided evenly by SES (high and low), sex, and grade (fifth and seventh).…

Experiments revealed that children seemed able to integrate multiple sources of information but were more dependent on clue support and generally less likely to infer reason than adults. Children were more likely than adults to reject premise as an explanation of outcome. Only fourth-graders and adults modified inferences in response to resolution…

Tested whether intrinsic motivation depends on matching cognitive level and task demands and assessed effects of rewards and praise on intrinsic motivation. Children preferred tasks just beyond their ability levels. Praise had mixed effects: rewards decreased intrinsic motivation among highly motivated children but did not influence intrinsic…

Three studies investigated preschoolers' reasoning about ability. Findings suggested sensitivity to mental state information when judging another child's ability, and they perceived positive correlations between effort and academic success, and "niceness" and high academic ability. Comparisons with 9- to 10-year-olds suggest that…