This document describes the construction/simulation software called Stella which can be used in the investigation of dynamic causal models. Topics considered are its built-in perspective of system dynamics and capabilities, its potential drawbacks, and its cognitive implications for educational applications. (JJK)

Tested a knowledge-based view of early memory development. Assessed preschool children's knowledge about two different scenes and their recall and location memory for objects in those scenes. Found that age, knowledge about categories, and memory for unrelated objects were significant predictors of memory of objects in the scenes. (MM)

Linguistic imitation by 48 children with Down's syndrome was compared to that of 57 children without mental retardation. The children with Down's syndrome imitated slightly less. This difference was related to language level and the source of the imitation, suggesting that children with Down's syndrome develop differently with respect to…

Premature infants with subependymal or intraventricular hemorrhage took longer to habituate on a habituation task, and scored lower on a measure of mental development, than did other premature infants or full-term infants. Both groups of premature infants were less successful than full-term infants on an object permanence task. (BC)

Reviews Gibson's contributions to the domain of perceptual learning, including her classic experiment concerning the perception of scribbles. Discusses Gibson's research on differentiation and the links between perception and learning, the status of her research and ideas, and her experimental approach. (BG)

The analysis or modeling of Piagetian and psychometric measures of mental ability is discussed. An application of structural modeling procedures allowing the testing of hypotheses in this domain is presented. Such a model is illustrated through a study of numerical functional relations tasks with 77 elementary school students. (SLD)

List repetitions in lists with phonologically similar and dissimilar items were used to examine improvement in preschool children's recall. Cumulative repetition caused a moderate increase in memory span and the phonological similarity effect. Repeated serial order information was helpful for children's recall, but articulatory coding was not. (BC)

This study examined the acquisition of verb particles and prepositions in language-impaired, language-matched, and age-matched preschool children (total n=42). Results indicated that the use of verb particles constituted a particularly challenging task for the language-impaired subjects relative to both the age-matched and language-matched peers.…

This study examined how 21 blind children (ages 3-8) performed perspective-taking tasks compared to 60 sighted children with and without blindfolds, under different conditions of distance and barriers. Results showed that, with increasing age, young blind children did not exhibit a significant increase in accurate perspective taking. (JDD)

Describes the problem-solving behaviors of six novice subjects attempting to solve an electrostatics problem in calculus-based college physics. The level of qualitative thinking exhibited by these novices was determined. Sound procedural knowledge and problem representation were suggested as an integral part of skilled problem solving in physics.…

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…

Examines processes of moral change in light of emerging concepts from narrative psychology. Argues that role taking can be better understood when narrative concepts are employed. Concludes that, where cognitive developmental and narrative approaches to psychological development differ, the narrative account can illumine and challenge categories…

Recommends treating basic skills students as if they have innate knowledge, not an intellectual disease. Underscores inference as a key activity in critical thinking. Suggests strategies for improving students' inferential powers. Argues that the strategies can help students recognize their inferential ability and learn to use it in writing. (SG)

Two groups of 32 junior kindergarten and 32 first-grade children performed an instance and superordinate name comprehension task, using 96 single-exemplar pictures from 12 categories. High rates of instance name intrusions and other findings suggest that superordinate name production may be interfered with by more readily available instance names.…

Twenty-three intermediate grade students (seven with learning difficulties) completed a concept mapping and vocabulary quiz, with instructions highlighting the value of learning goals or performance goals. Children with varying learning histories mediated in-school learning with qualitatively distinct epistemologies, and the "learning goals" task…