College undergraduates learned word lists involving three-term contingencies (stimulus-response-outcome). Learning rate was correlated approximately 0.5 with scores on Raven's Advanced Progressive Matrices (Raven) but did not correlate significantly with several tasks (inspection time, card-sorting, trail-making, PASAT) shown to be associated with…

This article analyzes if working memory (WM) is especially important to understand "g." WM comprises the functions of focusing attention, conscious rehearsal, and transformation and mental manipulation of information, while "g" reflects the component variance that is common to all tests of ability. The centrality of WM in individual differences in…

This study explored the structure of elementary cognitive tasks (ECTs) and relations between the corresponding construct(s) with processing speed (Gs) and fluid intelligence (Gf). Participants (N=321) completed 14 ECTs, 3 Gs, and 6 Gf marker tests, all administered in paper-and-pencil format to reduce potential confounds evident when tasks are…

Research on educable retarded children is reviewed to explicate components of and a theory of intelligence. Studies of control processes in memory and problem solving indicate that the ability to generalize is a major component of intelligence. Research on individual differences in components of information processing systems are also discussed.…

Three groups of fourth graders (N=180) were selected on the basis of high, average and low IQ scores. Available from: Ablex Publishing Corporation, 355 Chestnut Street, Norwood, New Jersey 07648. (CL)

It is shown how typical analyses of strategic behavior focus on the "problem of remembering" based on the experimenter's conceptualization of optimum task performance. A new definition of a strategy is suggested in which strategies are seen as attempts to solve the "problem of remembering" as understood by the person. (Author/LMO)

Eighty-one university students were given a battery of reaction time tests and a group test of intelligence which yielded timed and untimed scores. Multiple regression analyses indicated that speed of information-processing was an equally good predictor of timed and untimed intelligence test performance. (Author/LMO)

Individual differences in visual recognition memory and intelligence were correlated using 52 five-year-olds whose IQs ranged from 40-136. The correlation between memory performance and IQ was .70 for whole sample, and .61 when children with IQs below 75 were omitted. Immediate recognition memory is highly associated with intelligence. (Author/RD)

Sex differences in speed of solving mental rotation problems were replicated but college men and women were alike in frequency of use of algorithms to solve problems. The most frequent algorithm involved encoding stimuli in working memory, mental rotation of one to orientation of the other, comparison, and response. (Author/RD)

The influence of task explanation on strategy transfer was studied. When educable mentally retarded adolescents were trained to rehearse and given a minimal explanation of a directed forgetting task, the majority were found to maintain the strategy on trials identical to rehearsal, but they failed to generalize the strategy in other trials.…

Limitations of current information-processing research on the nature of intelligence are discussed. Major criticisms are that the tasks are static; lack of generalizability from the laboratory to the real world; and collective intellect, motives, goals, circumstances, and ambiguity are not addressed in either theory or research. (Author/RD)

Whether variability in adult cognitive performance was associated with variability in dietary energy intake quality was studied with 54 male and 101 female Egyptians. Results emphasize the importance of nutritional intake for adult cognition even in populations that are not clinically malnourished. (SLD)

In a study of operative thought in children, 104 children, aged 4 to 9, were tested 5 times with the same 25 Piagetian tasks. There were manifest indicators of synergy in the development of the various behaviors, but it was not possible to validate specific problems of behavior organization. (SLD)

In experiments involving 178 and 190 military recruits, spatial, quantitative, and verbal inspection time (IT) and visual search (VS) tasks and an intelligence test were administered. Results indicate that IT performance has a component related to intelligence tests and an independent component related to processing speed tests such as VS. (SLD)

Correlations among peripheral nerve conduction velocity (NCV), brain NCV, simple and choice reaction times, and a standard measure of intelligence were investigated for 200 male college students. No correlation was found between any arm NCV and the intelligence score. Neurophysiological bases of human information processing and intelligence are…