Three experiments investigated (1) whether developmental differences in the information integration rule apply to ulterior motive information; (2) whether such developmental differences are limited to situations involving parental reward; and (3) how related age differences among children can best be explained. (RH)

In a study of the effect of task demands on attention allocation, 20 9-year-olds and 20 13-year-olds were presented with a primary and a secondary task. Subjects were instructed either to respond to the primary task or to respond to both tasks. Overall, findings indicate that ability to allocate attention in accordance with task demands improves…

Investigated play-fighting and chasing among 7-, 9-, and 11-year-olds in their school playground, where rough and tumble behaviors occupied approximately 10 percent of the time of 94 students. Findings indicated that rough and tumble tended to occur in a friendly, nonaggressive context. The importance of partner's strength increased with age.…

Multimethod assessments of temperament were obtained from 89 twins at 18 and 24 months of age. Ratings of subject reaction to restraint and parent ratings of temperament plus coordination of these temperament dimensions with analogous dimensions obtained at 12 months provided evidence of stability of temperament across six-month intervals during…

When 60 five-year-old and 48 10-year-old children heard three stories, each containing three target objects from each of three taxonomic categories, younger children received greater benefit than older children from strongly scripted story presentations and from constrained category-cue and script-cue retrieval conditions. Cues and the extent to…

A total of 12 three, four, five, seven, and nine year olds and 12 adult control subjects were asked 20 questions about two exemplars of each of 16 categories of animate beings and inanimate objects. Children's responses indicated that animism is not a pervasive phenomenon and does not appear to be the most primitive mode of conceptualization.…

Two studies investigated children's perceptions of how the cause of achievement outcomes affects children's emotional responses. Children aged 6, 7, 9, 10, 12, and 13 rated the reactions of children in stories to success or failure in study one, and the cause of the stories' outcomes in study two. Age differences were found in both studies. (SKC)

Discrepancy between angl head turn and loudspeaker location was measured on infants in auditory-alone and auditory-visual trials. Age and loudspeaker location had no effect on performance in auditory-visual trials. However, in auditory-alone trials, there were significant age differences. (PCB)

Explores age and classroom differences in children's awareness of teacher expectations and in the relation between awareness and self-expectations. (PCB)

Compares second-, fifth- and eighth-graders' reasoning about their relative ability and that of another child (who applied more or less effort) with their reasoning about the relative ability of two others (who differed in effort). Responses to specific questions may be more sensitive to situationally induced motivational influences than responses…

The normative rule began to predominate at age 10 and was the only rule employed by 13-year-olds. In contrast, almost all 7-year-olds simplified the equalization task to an ordinal level. Four different nonalgebraic rules were identified. Neither young children's tendency to simplify nor older children's capacity to quantify could be detected in…

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…

Examined the ability of children of different ages to encode and retrieve from memory descriptions of aggressive and withdrawn behavior displayed by hypothetical peers. Descriptions of two hypothetical peers were read aloud to the children studied. (PCB)

Studies investigated the development of children's ability to differentiate what they see from what they know in the context of conceptual perspective taking. Two developmental levels accounted for children's performance when they were asked about a naive observer's knowledge of the identity of objects. Perspective awareness training improved…

A developmental progression in 6-, 8-, and 10-year-old children's use of strategies for gathering information was revealed in a study involving partial recall, total recall, and similarity/difference judgments. When subjects chose stimuli for exposure from an array, older children showed more ability to match strategy to task demands. Strategy…