Children are limited in visual search accuracy and this ability increases from childhood to adolescence. Developmental limitations in visual search could be related to children's difficulties in efficiently planning and executing their search, often assessed with cancellation tasks. However, few studies have examined age-related changes in visual…

A study of the responses made to problems selected from Raven's Progressive Matrices showed differences in the kinds of errors typically made by eighteen-year-old students. Nine problems were used and the 68 subjects were told to draw their answers on the answer sheets. There were two trials per puzzle. A classification system, devised for errors,…

A study investigated developments in reasoning and memory as reflected by the discovery strategies of children taking part in a manipulative categorization and recall task. A total of 40 children (8 each of 18, 24, 30, 36, and 42 months of age) participated. Stimulus materials consisting of blocks, toy plates, discs, and plastic trees were…

The performance of 40 hearing and 40 hearing-impaired children, aged two-five years, was compared on a battery of nonverbal tasks and a nonverbal intelligence test. Age significantly affected the results, consistent with a developmental change. In cognitive development, the hearing-impaired children were comparable to same-age hearing children.…

The decision making processes of children in a probabilistic environment were studied within the context of the theory of signal detection (TSD). The relationship between the age of the child and his ability to revise decision criteria was examined, as well as the appropriateness of TSD measures and methodology with children. It was hypothesized…

Eighty subjects 4, 6, 8, and 10 years of age inductively identified partially uncovered silhouettes of three simple pictures. Subjects removed as few as possible covering pieces, according to their own strategies, to correctly name the pictures. Performance generally improved with increased age on the two dependent measures, inductively inferring…

A study was conducted to investigate the impact certain cognitive styles or structures have in mediating the influence of aggressive television on young boys. Ss were 143 white middle class boys: 36 were 5 1/2-year-old kindergarteners; 30 were 6 1/2-year-old first graders; 36 were 7 1/2-year-old second graders; and 41 were 8 1/2-year-old third…

A study was conducted to: (1) provide normative data for the Brozovich-Hall Watson (BHW) scale, a non-verbal method of assessing cognitive style; (2) provide data for itwm revision and further refinement of the BHW; and (3) assess the effects of grade level (age), sex and socioeconomic status on cognitive style. The BHW was administered to 621…