Dual-process theories have been proposed to explain normative and heuristic responses to reasoning and decision-making problems. Standard unitary and dual-process theories predict that normative responses should increase with age. However, research has focused recently on exceptions to this standard pattern, including developmental increases in…

Fourteen children with autism spectrum disorders (ASD) and fourteen age-matched typically-developing (TD) controls were tested on an adapted version of the Twenty Questions Task (Mosher and Hornsby in Studies in cognitive growth. Wiley, New York, pp 86-102, "1966") to examine effects of content, executive and verbal IQ factors on category use in…

Recent studies have tested the addition of worked examples to tutored problem solving, a more effective instructional approach than the untutored problem solving used in prior worked example research. These studies involved Cognitive Tutors, software designed to support problem solving while minimizing extraneous cognitive load by providing…

Differentiation and integration played large roles within classic developmental theories but have been relegated to obscurity within contemporary theories. However, they may have a useful role to play in modern theories as well, if conceptualized as guiding principles for analyzing change rather than as real-time mechanisms. In the present study,…

The basic assumptions of information processing theories in cognitive psychology are reviewed, and the application of this approach to problem solving in gifted education is considered. Specific implications are cited on problem selection and instruction giving. (CL)

The paper reports observations from a 2-year investigation of teaching/learning processes as they occurred during microcomputer instruction in three special education schools. Factors in the learner and/or learning environment are analyzed for their effects on the development of problem solving strategies. Part 1 reports observations of behavior…

Three studies examined preschoolers' use of desires to solve theory of mind problems. Findings indicated that even young children could correctly attribute a false belief to an agent when that belief was about the status of a pretense. Subjects found it easier to attribute a false belief when the desires of the agent were eliminated. (Author/KB)

This paper describes the rule-assessment approach to cognitive development. The basic question that motivated the rule-assessment approach is how people's existing knowledge influences their ability to learn. Research using the rule-assessment approach is summarized in terms of eight conclusions, each illustrated with empirical examples.…

Researchers concerned with the issue of children's play are urged to read the book "Children's Play: Current Theory and Research" edited by D. J. Pepler and K. H. Rubin which provides an up-to-date review of the conceptual, methodological and developmental issues related to children's play. (MP)

Reviews a definition of intelligence consonant with research findings and current as well as previous conceptions which opens the way to a theoretical and clinically applicable conception. Reprints available from author, Psychology Department, Duquesne University, Pittsburgh, Pennsylvania 15219. (Author/EK)

This paper takes the position that theories about individual differences in childhood and theories about cognitive development both would be enhanced if the two lines of research were integrated. The heuristic value of this position is illustrated in the context of analogical reasoning tasks. A general model of analogy solution and potential…

Tested three models of children's mathematics word-problem solving based on developmental differences in quantitative conceptual structures: (1) quantitative relations represented as ordered array of mental objects; (2) numbers represented on two tentatively coordinated mental number lines; and (3) numerical operations represented as objects on…

Maintains that Demetriou and his colleagues' project shows how developmental scientists can assess concepts from multiple frameworks and relate them through explicit modeling and targeted research to build explanations powerfully grounded in data and theory. Presents doubts related to specific conclusions because of issues related to the design of…

This study examined effects of individual differences in speak-span scores and variations in memory demands on class-inclusion performance of 10-, 13-, and 15-year-olds. Results from regression analyses and the mathematical model indicated that differences in age, speak span, and memory load affected performance. Effects of speak span and memory…

The conference papers in this collection emphasize the theoretical significance of their authors' work in the areas of mathematical and cognitive psychology. Major topics considered include facilitation of problem solving; psychological differences among problem isomorphs; the process of understanding in problem solving; processing information for…