Children's ability to produce and use natural language mediators on a paired-associate recall task requiring self-generated elaboration was analyzed. Elaborations were recorded and classified according to a semantic-syntactic scheme. Comparisons between grades were made to determine the effectiveness of elaboration categories in facilitating…

Pairs of elementary school children at different concept development levels were given problems to discuss, in order to examine the prediction, derived from the equilibration model, that when two children holding different beliefs must arrive at a consenus, the child possessing the higher level of cognitive development will prevail over the child…

Participants aged 17-26, 39-51 and 59-76 solved concept problems to investigate intellectual correlates of concept identification as a function of stage of learning in adulthood. Differential ability-performance relations as a function of stage of learning were considerably less potent in the elderly v the young and middle aged. (Author)

Used Visual Expectation Paradigm to describe information processing changes and individual differences during first year of life. Found regular age changes in mean reaction time and variability but not in minimum reaction time, suggesting that growth rate of sensory-detection information is constant during first year but age changes occur in level…

Speculates on underlying processes for the reaction time variance and age differences in anticipation latency using the Visual Expectation Paradigm. Discusses the dichotomization of reactive and anticipatory behavior, limitations of longitudinal designs, drawbacks in using standard procedures and materials, and inferences that can be made…

Investigated the development of reorientation abilities in humans in contrast to other mammals. Findings support the domain specificity of human's core cognitive abilities, the conservation of cognitive abilities across related species and over the course of human development, and the developmental processes by which core abilities are extended to…

Two experiments compared 10-year-olds' and adults' ability to choose positive and negative diagnostic tests over positive and negative nondiagnostic tests. Findings indicated that both age groups were more likely to prefer positive diagnostic tests over positive nondiagnostic tests, although only adults showed a significant preference for negative…

Examines the degree to which implicit memory performance is dependent upon the storage of specific perceptual information in a sample of 4-, 5-, and 10-year-old children. Suggested that the processes that subserve pictorial repetition priming and recognition memory develop at different rates, and that such priming is dependent upon access to…

Discusses variables related to task performance in the solution of the water-level problem, where subjects were asked to indicate the water surface orientation in a tilted vessel. Subjects ages 7 to 15 years participated. Suggests that field effects and the kind of rules in use contribute to the differences in performance, which can be shown even…

Forty 3.5- to 4.5-year-olds discussed past events with their mothers and completed tasks indexing their ability to reason about conflicting mental representations and understanding of knowledge. Found that theory-of-mind scores were related to memory conversation participation, independent of age and linguistic skill, and to the frequency of…

Three studies examined the ability of 8- and 9-year-olds and young adults to use sample monotonicity and diversity information according to the similarity-coverage model of category-based induction. Found that children's difficulty with this information was independent of category level, and may be based on preferences for other strategies…

Examined in four studies whether and when infants connect information about an actor's affect and perception to their action. Found that 12-month-olds, but not 8-month-olds, recognized that an actor was likely to grasp the object she had visually regarded with positive affect. Replicated findings with 12- and 14-month-olds and with several…

A stratified random sample of 82 subjects, from 4 to 25 years of age, was used to examine relationships between intransitivity of paired-comparison relationships and age of subjects. Results indicate a floor level, at 6 to 7 years of age, below which response intransitivity increases significantly. (TJH)

Investigated 60 parents' perceptions of influence of their eldest child's (aged 4, 7, or 10 years) development and the extent to which these perceptions varied as a function of five factors. Cognitive and social development were significant variables for beliefs about influence. (RJC)

Investigated egocentricity and ascriptions of knowledge to others in 45 children of 3-6 years. Six-year-olds were better than younger children at assessing the other's knowledge. Subjects were better at assessing the other's knowledge when their own access and knowledge were identical. (RJC)