A mediation versus production deficiency in memory processing was examined by testing the effect of instructions for rehearsal on performance of 128 average and disabled readers in grades 2 and 5. A second study examined effects of covert rehearsal on the memory of 64 average and disabled readers in grade 2 over trials. (Author/PHR)

Two studies examined age-related change in proactive interference from previously learned material. The meta-analysis of 26 studies indicated that proactive interference decreased with age. The cross-sectional study found that third through sixth graders' and college students' recall was accurate on Trial 1, but became less so over Trials 2…

Reviews evidence that children use diverse cognitive strategies; discusses the adaptive value of using diverse strategies; describes models of strategy choice based on rational calculations; and presents an overview of the distributions of associations model of children's strategy choice. (RH)

One in a continuing series on visual aids, this article presents rules for the use of visuals in information presentations and orientations. Topics discussed include ambiguity and unanswered questions; the need for a cost/benefits analysis; appropriate visual styles; media selection; and the effects of visualizations on performance. (LRW)

Examined process mediating the effect of positive mood on performance of a cognitive task. Positive mood subjects performed significantly worse on a set of syllogisms than control subjects. Results are consistent with accounts arguing that people in positive moods expend less effort. (JBJ)

Examines a model for children's strategies for inclusion tasks. Suggests that young children are not consistent in task strategies and that they display mixed response strategies. Strategies may change with development. (ET)

This study with 56 students (mean age 15 years) with mental retardation and 53 nonretarded students (matched for mental age) found that students with mental retardation were more likely to rely on all kinds of external cues (task-relevant, incidental, or misleading) in problem solving, especially when the preceding task had been difficult.…

Responds to John J. Kim's critique of his studies of preschoolers' understanding of race. Maintains that his and others' investigations demonstrate that preschoolers differentiate the pattern of causal reasoning governing transmission and maintenance of racial characteristics from that governing transmission and maintenance of perceptually similar…

Traced developmental changes in automatic and intentional processing of Arabic numerals using numerical-Stroop paradigm in two studies. In numerical comparison task, found that congruent physical sizes facilitated and incongruent sizes interfered with numerical comparison at all ages relative to neutral control. In physical comparison task, found…

Explored the differential application of a self-regulatory strategy on mathematics performance among three eighth-graders with learning disabilities and diverse planning abilities. Found that all students improved on fraction probes as a function of using a cue card strategy. The student with high planning ability demonstrated consistent…

A study examined the relationship between structured imagination and creativity in story writing among 108 undergraduates. Subjects produced paragraphs that were meaningful/original, meaningful/non-original, or non-meaningful/non-original. Results showed that groups 1 and 2 wrote psychologically meaningful stories significantly more than group 3…

A study examined the executive functioning of 55 elementary school children with and without problems in written expression. A model that reflects some of the executive function domains (initiate, sustain, set shifting and inhibition/stopping) which significantly separate good writers from poor writers was used, however, none of the executive…

Proposes that conceptual change is constrained by the child's conceptual structures and the structures inherent in problem-solving tasks. Uses a microgenetic case study and group data to examine how interaction between strategies children bring to a task and the detailed task structure redirect children's attention and create the possibility of…

Two experiments used Headed Records memory model to examine preschoolers' performance on a variation of Perner's Smarties task, a false-beliefs test. Data indicated that when the computational demands imposed by the original task are reduced, young children can and do remember what they had thought about the contents of a tube even after its true…

A study investigated the relationship between working memory (WM), declarative strategy knowledge, and math achievement in 111 children with and without mathematical disabilities (MD). Results found verbal and visual-spatial WM, stable verbal strategy choices, and expert strategy choices related to visual-spatial processing all contributed…