A comparison of the theories of Jean Piaget and William Perry (using individual interviews with college students) shows that the two theories outline different and independent processes for assessing intellectual development. (JN)

In this defense of Piagetian constructivism, sociocultural constructivism is critiqued as nihilistic, culturally relative, and dangerous when placed in the context of real science classrooms. (PR)

Sex-related differences on Piagetian horizontality (water level) and verticality (plumb line) tasks were examined by testing 64 college students. Results showed that college-aged males and females generally did not differ in spatial competence although they may be differentially influenced by task content. Implications for theory and practice are…

Concludes that Pascual-Leone's theory extends Piaget's negative heuristic by introducing antecedent variables and at the same time enriches the positive heuristic by introducing metasubjective task analysis, which leads to a progressive problemshift. (Author/PR)

Argues that the Piaget's epistemic subject is not supported by evidence and contains weaknesses. Concludes that the epistemic subject is dead and that continued acceptance of this aspect of Piagetian theory would be counterproductive. (PR)

Proposes a theoretical model of cognitive development and applies this model to the secondary analysis of two large-scale studies which focus on the acquisition of formal operational schemata by adolescents in the United States and Israel. Results support the "unity" hypothesis of cognitive development that the various schemata of formal…

Different learning cycle sequences were investigated to determine factors accounting for success of the cycle, compared learning with conventional instruction, and examined relationships between Piaget's theory and learning cycles. Results show that the normal learning cycle sequence is the optimum sequence for achievement of content knowledge in…

Determined is the logical reasoning necessary to construct line graphs including a straight line with a positive or negative slope and an exponentially increasing curve. The responses of subjects (grades 6-12) were classified into one of nine categories fitting with Piagetian operational structures. (Author/YP)

Discusses differences between the epistemic and the psychological subject, the relationship between the epistemic subject and the ideal gas law, the development of general cognitive operations, and the empirical testability of Piaget's epistemic subject. (PR)

Author argues that constructivism is flawed because of its inability to come to grips with the essential issues of culture, power, and discourse in the classroom. Presents an account of a sociocultural approach to teaching based on the notions that learning is situated in contexts, students have their own cultural perspectives, and classroom…

Examines results of Piagetian spatial research studies while focusing on the existence of gender differences in Piagetian spatial assessments. Results indicate that a majority of performance assessments did not demonstrate a significant difference between males and females. Concludes that the clinical interview results provide evidence of the…

Reports a study of 922 college students that classified the students based on performance on formal operational reasoning tasks. Students were also administered seven logic tasks. Response patterns were analyzed and found to be similar to patterns derived from the multiple-hypothesis theory of advanced scientific reasoning and different from those…

According to Piaget's theory, maturation of the nervous system is sufficient for the development of formal thought. If this were the case, the job of the educational system would be small indeed. Rather, maturation determines only the totality of possibilities and impossibilities at a given stage. This study investigates whether instructional…

Reports on a study designed to identify the hierarchical relationships among Piagetian cognitive modes and integrated science process skills for different Piagetian cognitive reasoning levels, and to determine whether positive vertical transfers could be validated. (TW)

Review of literature concerning problem solving in genetics and Piagetian stage theory. Authors conclude the research suggests that formal-operational thought is not strictly required for the solution of the majority of classical genetics problems; however, some genetic concepts are difficult for concrete operational students to understand.…