By 3 years of age, children can solve tasks involving physical principles such as locating a ball that rolled down a ramp behind an occluder by the position of a partially visible solid wall (Berthier, DeBlois, Poirer, Novak, & Clifton, 2000; Hood, Carey, & Prasada, 2000). However, the extent to which children use physical information (the…

Reorientation tasks, in which disoriented participants attempt to relocate objects using different visual cues, have previously been understood to depend on representing aspects of the global organisation of the space, for example its major axis for judgements based on geometry. Careful analysis of the visual information available for these tasks…

Six experiments examined children's ability to make inferences using temporal order information. Children completed versions of a task involving a toy zoo; one version required reasoning about past events (search task) and the other required reasoning about future events (planning task). Children younger than 5 years failed both the search and the…

Experiments were conducted to determine the influence upon task difficulty of these factors: age; percentage of redundancy between relevant and irrelevant cues; saliency of reinforcement, discriminability of relevant nonpreferred dimension, and learning set pretraining to reject preferred irrelevant dimensions. (Author/AJ)

Nine- and 16-month-old infants were presented a manual search problem in which a toy was hidden in one of two inaccessible containers, which were then moved into reach. Older infants performed better than younger infants, performance improved across trials, and more correct searches occurred when containers or trajectories were distinctive.…

Investigated effects of two kinds of imagery on age differences in the ability to solve series problems. Overall, older adults (N=47) obtained lower scores than younger adults (N=41). However, results suggest older adults can use imagery as a control process, but are less likely to use imagery in abstract situations. (Author/JAC)

Outerdirectedness has been defined by first author and his colleagues as a style of problem solving characterized by reliance on concrete situational cues rather than by active attempts to deduce abstract relationships. (Authors/MB)

A modified elicited imitation task was used to examine the development of the ability to resist and overcome interference in the 2nd and 3rd years of life. In the modified task, distractor props were included in the test array, so that children could imitate the modeled sequence but could also produce actions with the additional props provided,…

Research using the Dimensional Change Card Sort (DCCS) showed that young children are usually able to sort accurately by an initial rule but are unable to switch to a new rule when the two rules conflict. In 2 experiments, the DCCS was modified to study the effects of feedback on 3- to 5-year-old children in a problem-solving task. In Experiment…

Two studies with 170 children aged 4-12 years examined the possibility that unsolicited help can serve as a low-ability cue. Targets of unsolicited help are perceived by children as less able students who are less likely to do well and less likely to be desirable workmates. (SLD)

Testwise responses of grade-school students to multiple-choice science items and the intercorrelations between different testwiseness skills were examined in this document. A total of 134 third-grade, 133 fifth-grade, and 143 sixth-grade students from two elementary schools in a large suburban school district in Utah responded to 60 science items…