We implemented a new approach to measuring the relative speeds of different cognitive processes, one that extends multinomial models of memory and reasoning from discrete decisions to latencies. We applied it to the dual-process prediction that familiarity is faster than recollection. Relative to prior work on this prediction, the advantages of…

This study examines the extent to which iron deficiency in infancy contributes to adverse neurocognitive and educational outcomes in young adulthood directly and indirectly, through its influence on verbal cognition and attention problems in childhood. Young adults (N = 1,000, M age = 21.3 years, 52% female; of Spanish or indigenous descent) from…

The subjective value of rewards declines as a function of the delay to receive them (temporal discounting). Three temporal discounting tasks that assessed preferences between small amounts of money (10 pence) over short delays (60 s), moderate amounts of money (10 British Pounds) over moderate delays (2 weeks), and large amounts of money (1000…

Previous research by J. M. Hinson, T. L. Jameson, and P. Whitney (2003) demonstrated that a secondary task in a delayed discounting paradigm increased subjects' preference for the immediate reward. J. M. Hinson et al. interpreted their findings as evidence that working memory load results in greater impulsivity. The present authors conducted a…

The Predominantly Inattentive (PI) and Combined (CB) subtypes of AD/HD differ in cognitive tempo, age of onset, gender ratio, and comorbidity, yet a differentiating endophenotype has not been identified. The aim of this study was to test rigorously diagnosed PI, CB, and typical children on measures selected for their potential to reveal…

The paper reviews research dealing with the process of reflective abstraction, analysis and modification of one's own behavior, in learning disabled students. A study was conducted to test the hypothesis that children with a working memory of three pieces of information, who are inclined to employ self-terminating processing strategies because of…

Discusses experiments testing the adequacy of the common attribute-value representation for knowledge about concepts. (AM)

Acquisition, maintenance, and generalization of organizational strategies were studied in two experiments as a function of impulsivity-reflectivity and metamemory among primary school students. Findings are in line with the hypothesis that metamemory, rather than cognitive tempo, mediates the effectiveness of an experimenter-trained strategy in…

This study sought to determine whether differences in cognitive style would be reflected in the quantity of information available in memory. In order to obviate the criticism that differences between impulsive and reflective subjects might be a function of exhaustiveness of search, stimuli were presented for a restricted period. (Author)

Thirty impulsive and 30 reflective EMR (educable mentally retarded) Black students (9-12 years old) were administered conjunctive concept attainment tasks with or without a memory aid. Repeated measures analyses of variance were used to examine the effects of the independent variables (cognitive tempo, presence or absence of a memory aid, and…

This study of problem solving and conceptual tempo had two objectives: (1) to begin to clarify the underlying deficiencies which contribute to the less efficient information processing of impulsive children (as compared with reflective children) during problem solving; and (2) to demonstrate the utility of using a task analysis as a…

Difficulties facing learning disabled (LD) students in problem solving are reviewed and an approach is proposed to help them make better use of the learning strategies available to them. A cognitive learning style approach to LD students is introduced, followed by an analysis of problem solving and the stages of information processing (attention,…

Describes an experiment measuring response latency which required subjects to make a word-nonword decision in response to a visually presented item. (AM)

The reflection-impulsivity (R-I) dimension of individual variation incognitive processes is discussed. A literature review focuses on studies that have supported the validity of the R-I dimension as a concept, and studies providing evidence of a direct relationship between the R-I dimension and visual scanningstrategies. This study compares the…

The literature on performance differences in various tasks as a function of reflection-impulsivity (R-I) is reviewed in this publication. A series of four experiments is then described which involve the cognitive-perceptual basis of R-I of children on a picture recognition memory task. Results from these studies indicated the following important,…