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…

This study compared perceptions of relationships with parents, best friends, siblings, and imaginary companions among 4-year-olds with invisible friends, object companions, or no imaginary companion. Findings indicated that parents afforded instrumental help, and siblings were associated with conflict. Real and imaginary friendship provisions were…

Presents an existence proof of how preservice science teachers used analogies embedded in their course materials, Physics by Inquiry. Reports three distinct roles of analogies: a) cognitive process skills; b) scientific conceptual understanding; and c) social contexts for problem solving. Agrees on the importance of collaborative problem solving…

Focuses on theories concerning the origin of language. The article indicates that the language-origins theories most favored in contemporary science all have their roots in the intellectual preoccupations of the early scientists and philosophers of the European Enlightenment. The article concludes that the origin of language myth reveals itself as…

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…

An Australian comparison study of 26 children (mean age=10) with mild intellectual disabilities, 26 typical children of approximately the same mental age, and 26 children of approximately the same chronological age, found no mean differences on problem-solving abilities between the children with intellectual disabilities and children of comparable…

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…

Basic principles of instruction to effect cognitive change are examined, particularly within the context of South African higher education. Principles include: creating and engaging in conflict between existing knowledge and demands of an unfamiliar task; empowering learners to address the unfamiliar; scaffolding between learner and task; testing…

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…

This article reviews literature on the development of children with autism under 3 years. Findings on affective development, sensory processing and attention, praxis and imitation, communication, play, motor features and stereotyped behaviors are discussed, as are interrelationships among these aspects of development. Screening and diagnostic…

This comparison of the reading comprehension, decoding, and spelling skills of 404 children with low vision and a norm sample found children with low vision with no additional disabilities performed less well than the sighted children only on decoding, whereas those with additional disabilities performed less well on all tests. (Contains…

This longitudinal training study explored impact of social scaffolding on emergence of graphic symbol functioning and links among graphic, language, and play domains in symbolic development. Findings support view that graphic symbolic development can be influenced by cultural scaffolding, that more extensive training is needed early rather than…

Supports the thesis that constructivism and self controlled learning in adult education should be considered reactions to imperatives of modernization. Recognizes that concepts of self-directed learning are accompanied by a change in the forms of organization as well as the logic and structure of action in adult education. (CAJ)

Contends that cultural practices such as carrying the baby on the mother's back for prolonged periods can impact negatively on development of visual integration during the sensorimotor stage pathways by preventing adequate or enough crawling. Maintains that crawling is essential for cross- modality integration and that higher mental functions may…