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)

Presents a unified theoretical approach to children's false-memory reports that deals with both spontaneous and implanted reports. Details false recognition and misinformation models that allow researchers to determine the impact of identity judgment, nonidentity judgment, and similarity judgment in false memory reports. (LBT)

Notes that there has been far less mathematical modeling of children's memory than of adults' memory. Explores the flaw in fuzzy-trace model, and maintains that situations in which partial verbatim information is used along with partial gist information fall outside the boundary of this type of model. Suggests refining the concepts of and…

Notes that a multitude of studies have demonstrated that misleading postevent information affects people's memories. Contents that the fuzzy-trace theory is a positive step toward understanding the malleability of memory. Discusses fuzzy-trace theory in terms of three primary areas of study: altered response format, maximized misinformation…

Notes that spontaneous false memories are a routine part of everyday memory and more common than implanted false memory. Commends the fuzzy-trace theory for the separation and explanation of these two sources of inaccuracy. Demonstrates the theory's handling of three phenomena concerning the creation and maintenance of false memories. (LBT)

Notes that fuzzy-trace theory provides a link between indices of memory performance and the theoretical processes that underlie that performance. Author argues false memories can arise because of processes that normally affect forgetting. Maintains that, to the extent that memories lose their distinctive properties, such memories may become…

Suggests that fuzzy-trace theory may replace dominant metaphors of cognitive development. Discusses theoretical climate of the 1980s when the theory was first formulated. Describes how, by integrating new ideas about how cognitive development was viewed into a coherent framework, the theory slowly gained acceptance as critical aspects of it were…

Four experiments and an analysis of pooled data from English and Japanese children show a linear increase in understanding false beliefs with number of older siblings; no such effect for children younger than 38 months; no helpful effect of younger siblings at any age; no effect of siblings' gender; and no helpful effect of siblings on a source…

Presents a four-phase model that could help infuse constructivist practice into preservice teacher education courses. The phases include engagement (grounding the course in students' beliefs and experiences), connection (developing students' expertise for resolving later ambiguities), application (applying students' reconstructed understanding of…

Discusses motivations for research replications and makes recommendations for appropriate research strategies. Illustrates research strategies in a review of studies replicating a 1948 study by Soviet psychologist Z.M. Istomina on preschoolers' memory. Concludes that none of the studies closely replicated Istomina's methods, but some replicated…

Examined relationship between children's ability to infer the veracity of an adult's statement and the adult's informedness. Found that children tended to believe utterances from speakers who were better informed than they themselves were and to disbelieve less well-informed speakers, with no age-related differences. Children gave explicit…

Two studies tested the hunter-gatherer theory predicting that females should have better incidental memory for objects and locations than males. Subjects were 3- to 6-year olds and adults. Results indicated that females and males remembered more toys or objects congruent with their own sex but that there was no overall advantage for females.…

Developmental models provide a useful theoretical foundation for conceptualizing the cognitive development of counseling students. When these models are used, a rationale emerges for teaching styles and course sequencing in counselor education programs. (Author)

Investigated the etiology of several measures of cognitive delay in over 3,000 pairs of 2-year-old twins, focusing on group-differences heritability for general and specific cognitive delays. Concluded that because the genetic and environmental origins of verbal and performance delays in infancy differ, they are better considered separately rather…

The reliability and validity properties of the Brigance K&1 screen were examined with a sample of 134 Head Start children preparing to enter kindergarten. Prediction/outcome analyses, intended to explore the test's accuracy in predicting special-education status at the end of preschool, indicated a relatively high false negative rate and a…