Mental abilities can be analyzed at four levels: composite tasks, subtasks, components, and metacomponents. Each level of analysis reveals something about the structure and content of mental abilities responsible for intelligent performance. (Author/WI)

Examines the meaning of reaction time (RT) and the possibility that it may predict other cognitive and motor skills in the first year of life. Considers two competing models that specify the information-processing components underlying RT performance. Describes the neural data needed to definitively choose between the models and considers…

Examined the developing relationships between false belief understanding and an awareness of the individualized nature of personal taste as well as a maturing grasp of the interpretive character of the knowing process. Results indicated that the concept of interpretation appears to involve a more complex and significantly later arriving…

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)

Responds to calls for combining the ideas of Piaget and Vygotsky, discussing differences between the two perspectives. Notes that differences are found in underlying assumptions about the nature and process of development, philosophy, stages of development, developmental influences, and the integrity of cognitive structures. Suggests that, given…

Addresses the extent to which differences in Piagetian and Vygotskyan psychologies make their theories incompatible. Differences result from a Vygotskyan belief in a material primary cause for development; Piagetians do not hold this view. Explores this difference in perspective, concluding that, despite it, the two approaches are compatible. (JW)

This study, with 19 fifth graders having learning disabilities (LD) and 20 fifth graders without LD, examined cognitive and motivational variables. Although some differences between groups were found, differences in the motivational and cognitive variables generally cut across a priori categories of children with and without LD, forming three…

Explores the neural and hormonal basis of human intellectual function that gives rise to sex differences in the brain. Discusses behavioral, neurological, endocrinological studies, and studies of the effects of hormones on brain functioning that show a relationship between cognitive variations and sex. (MCO)

Maintains that most of the claims made by Morrison, Morrison, and Keating do not undermine the data analysis and conclusion of a study reported in a 1988 paper. Discusses (1) evidence concerning a common rate of developmental change; (2) functions that characterize developmental stages; and (3) procedures for estimating parameters. (LB)

Sternberg and Gastel have provided an example of a major principle of intelligence research--the relationship between a task's working memory demands and its sensitivity to individual differences in fluid intelligence and "g." There is no need to invoke additional constructs such as "novelty." (SLD)

Mildly retarded adolescents (N=33) were assessed on the nature of the memory representation that underlies ability to remember single sentences. The cued recall procedure reflected a difference in the degree to which mentally retarded and nonretarded individuals construct sentence representations that more precisely specify sentence meaning…

Two studies involving 333 military recruits investigate individual differences in time-accuracy functions of inspection time (IT) in terms of psychological models. Two alternative interpretations of IT time-accuracy functions (processing-distraction and processing-speed, and pure processing-speed "cascade" models) are considered in…

Argues primarily that metacognition is an important part of human abilities, which are, in turn, forms of developing expertise. If the goal is to understand the basis of individual differences in student academic success, metacognition needs to be understood as representing part of the abilities that lead to student expertise, but only as part.…

Three experiments examined the hypothesis that individual differences in look-duration during infancy covary with different modes of visual intake and encoding, with longer look-durations reflecting encoding based on prolonged inspection of local visual properties, and briefer durations reflecting encoding based on a global, or global-to-local…

The latency and amplitude of the P300, an event-related potential, during the performance of a memory-scanning task were used as indices of the efficiency of information processing that may mediate individual differences in intelligence. Results with 61 female college students contradict a pure speed of processing explanation of the relationship…