Philosophers and scientists seeking to conceptualize consciousness, and subjective experience in particular, have focused on sensation and perception, and have emphasized binding--how a percept holds together. Building on a constructivist approach to conception centered on separistic-holistic complexes incorporating multiple levels of abstraction,…

In this theoretical essay, the author addresses the existence of divergent evidence, portraying both competence and lack of competence in a fundamental realm of higher order thinking--causal and scientific reasoning--and explores the educational implications. Evidence indicates that these higher order reasoning skills are not ones that can be…

In this study we investigated junior high school students' processes of argumentation and cognitive development in science and socioscientific lessons. Detailed studies of the relationship between argumentation and the development of scientific knowledge are rare. Using video and audio documents of small group and classroom discussions, the…

Wertsch's clarification of Vygotsky's claims about the role of social interaction in the development of children's thinking made an important contribution to educational research. Revisiting that clarification, I suggest that "talk" instead of "speech" best describes Vygotsky's concern with the functional dynamics of dialogue rather than the…

This study examines the development of children's ability to reason about proportions that involve either discrete entities or continuous amounts. Six-, 8- and 10-year olds were presented with a proportional reasoning task in the context of a game involving probability. Although all age groups failed when proportions involved discrete quantities,…

Comprehension of moral reasoning is important both for successful moral education and for Kohlbergian claims that moral reasoning development is cognitive in nature. Because a psychometrically appropriate moral comprehension instrument does not appear to exist, the Moral Comprehension Questionnaire (MCQ) was constructed in Study 1 and displayed…

Study indicates that for children, but not for adolescents, the number of concepts produced was inversely related to the level of abstractness of the stimuli. (Author/MG)

Reviews and discusses Piaget's recent work on abstract reasoning. Piaget's distinction between empirical and reflective abstraction is presented; his hypotheses are considered to be metaphorical. (Author/DB)

Twenty-one male and 21 female adolescents were tested individually for conservation of mass, weight, and volume. (CM)

Discusses the impact of role playing on the change of moral judgment maturity in 96 college students. Subjects showed both immediate and delayed increases in moral judgment maturity when role playing a moral dilemma against an opponent who employed reasoning above the subject's initially assessed state. (LLK)

The study with 30 five-year-olds and 30 seven-year-olds demonstrated that children as young as five have an emerging ability to solve both verbal and perceptual proportional analogy problems and to detect the meaning of proportional metaphoric sentences. (Author/DB)

The article reports two phases of a study that, through use of Piagetian reasoning assessments, indicated significant delays in the cognitive development of 75 congenitally blind students (6 to 18 years) compared to 75 sighted Ss. Developmentally appropriate reasoning experiences produced equivalent performance of blind Ss to that of the sighted…

This study investigated the relationship between the attainment of a Piagetian formal operational concept (proportion) and personal characteristics in 117 children 10 to 12 years old. (SB)

Piaget's and Marx's cognitive theories of development are briefly compared and contrasted. This provides background for a critical look at Buck-Morss' interpretation of cross-cultural differences in performance on Piagetian abstract formal reasoning tests. (MS)

A propositional logic game which is a subtest of the new British intelligence scale was analyzed to determine the extent to which skills proper to a single Piagetian period, formal operations, were hierarchically ordered. Item response patterns from 60 14-year-olds were categorized by means of ordering theory, a boolean algebraic measurement…