Maintained that preschoolers' class inclusion task judgments and justification may be modeled as mixtures of different probability distributions, with different response strategies equivalent to different distributions. Found that justifications lagged behind judgments in development. Concluded that, if a single response variable is to be…

Discusses the need to ground critique by incorporating reflexive dialogical practice in management learning as a way of developing more critical and responsive practitioners. Reconstructs learning as reflective/reflexive dialogue in which participants connect tacit knowing and explicit knowledge. (Contains 75 references.) (Author/YDS)

In their commentaries, Carver, Richmond and DeBoer pose several challenging and insightful questions in response to our target article. Two key themes emerged from their commentaries, which are important in the field of infant memory research. The first concerns the use of deferred imitation as a paradigm, and its relationship to other methods of…

This study investigated 3- and 4-year-old's understanding of the relationship between pretense and mental awareness. In Experiments 1 and 2, only a subset of 4-year-olds recognized that sleeping characters and characters ignorant of their appearance were not pretending. However, these experiments had certain linguistic demands, which potentially…

The author argues that the gap between theory of mind and moral reasoning research may be more apparent than real. The wider gap is between sociomoral cognitions and real-world behavior. She calls for research on the relation of children's mental state and moral understanding to their sociomoral behavior.

Research to date has demonstrated that networking can be an effective strategy for supporting meaningful learning. However, studies have shown that learners encounter difficulties using it. In an attempt to understand and thus reduce these difficulties, this study examined learners' underlying cognitive processes and activities while networking.…

Substantial evidence suggests that young children reason about illnesses using biological causal principles and that, with increasing age, children provide more explicit accounts of mechanisms underlying different conditions. To investigate these claims, sixteen 7-8 year-old children and sixteen 11-12 year-old children with attention…

Two experiments are described that investigate the ability to infer the number of items in one-to-one corresponding sets for two age groups. We assess the influence of set size, the visibility of sets, and the way in which set equivalence is derived - pairing versus sharing - using a repeated-measures design. Three-year-olds are largely restricted…

Based on close observations of two 4-year-old children responding to their parents' requests for quantitative comparisons, we offer a "participationist" account of the origins and development of numerical thinking, one that portrays numbers as a product rather than a pregiven object of human communication. In parallel, we propose a…

The domain-independent and domain-dependent approach to the evolution of cognition have been taken by separate groups of researchers who have focused exclusively on either the formal properties or the distinct cognitive demands of tasks. We express the view that synthesizing the two approaches could lead to a more complete understanding, and…

According to the American Psychiatric Association [DSM-IV-TR, 2000], Attention-Deficit Hyperactivity Disorder (ADHD) affects approximately 3-7% of the school aged population and 2-4% of the adult population. Recently, college students with ADHD have begun to receive more attention, largely due to the increase in numbers of high school students…

The effects of environmental stimulation and parental nurturance on brain development have been studied extensively in animals. Much less is known about the relations between childhood experience and cognitive development in humans. Using a longitudinally collected data set with ecologically valid in-home measures of childhood experience and later…

Recent research has shown that 2-year-olds fail at a task that ostensibly only requires the ability to understand that solid objects cannot pass through other solid objects. Two experiments were conducted in which 2- and 3-year-olds judged the stopping point of an object as it moved at varying speeds along a path and behind an occluder, stopping…

Studies that examine the effects of exercise on children's intelligence, cognition, or academic achievement were reviewed and results were discussed in light of (a) contemporary cognitive theory development directed toward exercise, (b) recent research demonstrating the salutary effects of exercise on adults' cognitive functioning, and (c) studies…

The goal of this study was to examine children's cognitive and language development and social engagement of mother as mediators of the relationship between maternal emotional availability at 15 months and children's empathy at the ages of two and four. Participants were 661 low-income, ethnically diverse mother-child dyads participating in a…