Hypothesized that instructional methods employing concrete models and exemplars of a concept will lead to better student understanding at both the concrete and formal operational levels of cognitive development. However, concrete operational students did not profit from the instructional methods and results were not clear for early formal…

This study was designed to assess the effectiveness of one semester's instruction in science and mathematics, using an inquiry-based methodology, in facilitating cognitive growth in first year college students. Results indicated the inquiry approach did not promote cognitive growth in comparison with a more didactic or expository teaching…

Nine children were tested to determine the appropriateness of Piaget's part-whole fraction concept interpretation for both the discrete case and the continuous cases of length and area. (MP)

An algebra test was constructed within a Piagetian framework. Results of a selection of the test items are given and discussed. (MP)

Are the children now attending primary schools and transferring to secondary education at 11 + necessarily at a serious disadvantage educationally as compared with their contemporaries who transfer at 8 or 9 (or even 10) to a middle school, and enter a secondary school at 12 or 13 (or even 14)? In attempting to answer this question considers the…

A semi-longitudinal approach was employed with 378 Ss in this partial replication of a larger study of MA changes in institutionalized retarded persons. (Author)

A reply to a rejoinder in which Pascual-Leone defended his quantitative model of children's information processing capacity. Trabasso focuses on empirical evidence in presenting his reply to this rejoinder. (BD)

Reports a study conducted to determine whether several key concepts related to child development could be extended to existing theory and research concerning comprehension of television by kindergartners and early primary school children. Results indicate that children's indivisual differences partially explain amount and kind of social learning,…

Research on the effects of nutrition on brain growth and functioning, and on the interaction between the environment and cognitive development is reviewed. (CL)

This paper discusses how children form concepts; the diversity of concepts that are influenced by social processes; factors that affect concept formation; and behavioral techniques that have been effective in improving the instructional capabilities of parents and teachers. (Author/AM)

A. R. Luria, who was always dedicated to solving human problems and whose work revolutionized neuropsychology, is dead. His central concern was the removal of threats to effective psychological functioning, to a fully human life. Here is a review of his contributions to psychological research. (Author/RK)

According to Piaget's (1958) theory of cognitive development, the stage of Formal Operational Thinking, highly abstract, as opposed to concrete, thinking, emerges during the adolescent period. Recent research suggests that "all" adolescents, or even adults, "do not" develop complete formal reasoning. Attempts to integrate…

Study data point to a significant difference between the ability of normal and language-disabled children at the holophrastic stage to use their lexicon to communicate to a listener in a context. (MP)

It is through the awareness of self that movement becomes significant. (MJB)