A study simulated aspects of questioning experiences many fact witnesses encounter in a misdemeanor trial, including repeated, increasingly leading questions that suggest correct answers; suggest incorrect answers; or do not suggest any specific answer, but encourage additional information. Results indicated certain strengths in children's…

Examined the disruption effect in two recall experiments with six- and eight-year olds. In the first experiment, vivid irrelevant actions were better recalled than disruptions that were obstacles, but were not better recalled than disruptions that were distractions. Results of the second experiment suggest that disruptions that lead to more…

Four experiments investigated under which conditions and at which age level children in grades four through six would become aware of the conflict between practical and theoretical considerations in mathematics. Students in grades four and five did not indicate an awareness of this conflict, while about half the sixth graders did, indicating a…

An experiment with 4-, 7-, and 18-year olds investigated classifications of multidimensional objects to test whether the valuing of identity as a classification criterion occurs early in development; the distribution of attention to multiple relations increases with development; and the role of separate, component relations in solving…

Cognitive abilities that predicted growth in response to a 12-week training program in phonological awareness were investigated in 100 kindergarten children. Findings suggested that growth in analytic awareness was predicted by invented spelling and general verbal ability, while growth in synthetic awareness was predicted by a combination of…

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…

Contrasts the hypothesis that phonological memory, but not phonological sensitivity, accounts for significant variation in young children's receptive vocabulary. Presents the view that both phonological memory and sensitivity are manifestations of a latent phonological processing ability. Suggests that with age and performance IQ effects…

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…

Examines the development of young children's analysis of spatial patterns--specifically, hierarchical letter and geometric forms. Suggests that although children as young as four years of age demonstrated substantial analytic competence, their ability to integrate the parts of the spatial array to form a coherent whole was weaker and more easily…

Examines young children's ability to use simple morphological relations among words as a source of information about the words' spelling. Found that children used morphological relations among words only to a small extent. Suggests that although phonology plays an important role in early spelling, young children can also use other sources of…

Discusses changes occurring in two-, four-, and six-month-old infants' visual attention span, through a series of experiments examining their ability to orient to peripheral visual stimuli. The results obtained were consistent with the hypothesis that infants get faster with age in shifting attention to a spatial location. (AA)

Examines the perceptual cues used by three- and four-month-old infants to categorically distinguish perceptually similar animal species. Indicates that cues form the facial and head region provide the critical source of information that allows young infants to categorically differentiate cats and dogs and presumably a number of other animal…

Assesses the effect of delay between an event and new postevent information related to it in six-month-old infants' memory. Three phenomena were studied: memory impairment, memory facilitation, and categorization. Suggests that postevent information has different qualitative effects depending on its timing, and provides a basis for understanding…

Examines short-term memory for spoken words ignored at the time of their presentation. Age differences in the persistence of memory was found. Suggests that relatively attention-free properties of short-term memory may change with development in childhood, and priority should be given to distinguish maturational and experiential influences on…

Examined effects of motivation and intellectual ability on adolescent reasoning. Fifty adolescents were presented "scientific" evidence relevant to their religious affiliations. A manipulation designed to motivate adolescents toward greater accuracy improved overall performance. Crystallized intellectual ability was linked to absolute level of…