This paper attempts to integrate several different theories of the second-language learning process into a general theory of the human learners. Includes references. (JL)

Examined changes in preschoolers' ability to distinguish among memories of performed, pretended, and imagined episodes, and used source monitoring as a tool for inferring the nature of preschoolers' conceptualization of pretense. Found significant improvements between ages three and four in their ability to distinguish performed actions from…

Explores cultural institutions as educative environments for adult lives and situations for cognitive apprenticeship. Suggests ways that cultural institutions can be subject to the designs of reflective educators. (JOW)

Children between 7 and 13 years of age were presented with scenarios for which they predicted a result derived from 2 or 3 interacting variables. The effect of the interaction of variables was observed for all ages in familiar scenarios, but the effect diminished in scenarios of unfamiliar activity. (BC)

An instructional design model defining instruction as creation of a learning environment that supports learners' construction of knowledge was tested with 32 learners. Findings suggested that the learning environment was effective in supporting learners' construction of complex knowledge structures. (SK)

Two studies examined the relationship between cognitive rigidity and cognitive inertia, with a total of 52 children and adults with mental retardation and 50 nonretarded individuals. Findings provide some support for the theory that there are age-related inherent structural differences leading to greater rigidity in older adults. (DB)

Comments on Lewis's ideas about reconciling stage and specificity in neo-Piagetian theory in this issue. Focuses on whether general stages, domain specificity, and individual diversity are compatible from a nonlinear, dynamic perspective. Suggests that, by using catastrophe theory, intra- and interindividual diversity and domain specificity can be…

Suggests that social interaction of a child in the role of tutor in guided environments allows the building of geometrical concepts in nursery school based on strategies formed in natural settings. Shows a systemic improvement in students' performances when different contexts of guidance were used. (DSK)

Two experiments examined development of economic understanding among 5-, 7- and 9-year-olds. Found that most 5-year-olds understood the goal of acquiring desired goods, and most 7- and 9-year-olds also understood the goals of seeking profits, acquiring goods inexpensively, and competing successfully with other sellers. Results suggest that older…

This study compared the performance of 17 children with autism, 17 children with mental retardation, and 31 normally developing children on a false belief task performance using a posting manipulation (a pictorial cue which facilitates the false belief performance of normal 3-year-olds). The performance of autistic children was significantly…

Offers a commentary on five contributions to recent developments in the study of cognitive development that have been selected for this special issue. The relevance of each author's paper to issues that are central to cognitivists today and post-Piagetian developmental psychologists is discussed, and the overall need of evolutionary models to…

Examined relationships among theory of mind construct of intention and false belief, problem-solving ability, metacognitive regulation, and strategy use in 39 preschoolers. Found significant correlations between strategy use and theory of mind, and metacognitive regulation and theory of mind. A moderate, but nonsignificant, correlation was found…

Twenty-two children with autism were given four tests of false belief understanding: the Sally-Anne task, two variants of the deceptive box task, and the three boxes task. The overall consistency of the children's performance was high, 77 percent either passing or failing all tasks. Convergent validity and reliability are discussed. (Contains…

Examined three possible explanations for findings that infants detect textural discrepancies based on individual features more readily than on feature conjunctions. Found that none of the proposed factors could explain 5.5-month-olds' superior processing of featural over conjunction-based textural discrepancies. Findings suggest that in infancy,…

Four experiments examined very young infants' expectations about containment events. Found that 2- to 3.5-month-olds recognized that objects could be lowered inside a container with an open but not a closed top. Three-and-a-half-month-olds realized that objects could not pass through the container's back wall and should have moved with it to a new…