This paper presents a case study of the process of conceptual change in six-year-old children. The process of conceptual change in learning about floating and sinking is described from two different viewpoints: how the children's conceptions change during the instructional process, and how the social discussion during the experimental exploration…

This study investigated the developmental dynamics of mathematical performance during children's transition from preschool to Grade 2 and the cognitive antecedents of this development. 194 Finnish children were examined 6 times according to their math performance, twice during each year across a 3-year period. Cognitive antecedents, that is,…

To examine the development of triplets, 23 sets of triplets were matched with 23 sets of twins and 23 singletons (N138). Maternal sensitivity was observed at newborn, 3, 6, and 12 months, and infants' cognitive and symbolic skills at 1 year. Triplets received lower maternal sensitivity across infancy and exhibited poorer cognitive competencies…

This article describes a model for supervisors of group counselors to use to promote cognitive complexity in their supervisees. Counselor cognitive complexity has been linked to many positive counseling skills, including greater flexibility, empathy, confidence, and client conceptualization. Bloom's Taxonomy of Educational Objectives provides a…

Two samples of preschool children's representation and understanding of written number symbols was examined in two time points in one academic year. About 40% of Chinese four year olds (mean=4:7) were able to use conventional number symbols to represent the quantity of ten, on average. The majority of these children (85%) could represent written…

In the current paper we describe the methodology and results of the Oswego study, in light of D.V. Cicchetti, A.S. Kaufman, and S.S. Sparrow's (this issue) criticisms regarding the validity of the human health/behavioral claims in the PCB literature. The Oswego project began as a replication of the Lake Michigan Maternal Infant Cohort study.…

This article examines elementary music curricula. It presents an overview of research on childhood mental development; the importance of the early experiences of children on childhood development; the impact of environmental factors on language development; children's acquisition of music ability; enhancing elementary music curriculum; and…

Different theories offer different factors, each of which partially explain delinquency in young people. An integrated framework incorporating these theories would provide a more complete explanation. Theories that need to be built into such a framework include social control, social learning, strain, and cognitive development theories. Data were…

The nature of professional expertise has been widely debated in the literature. However it has been examined primarily from a dichotomy of perspectives--either from an experiential or a cognitive focus, without the attempt to integrate these, and other aspects of expertise into an integrated and coherent model. This article presents the…

Home-based counseling is an incredibly demanding intervention, yet little is known about the counselors providing this important service. This study sought to profile ego development, conceptual complexity, and supervision satisfaction for 120 home-based counselors. Counselors scored at moderate levels on measures of both ego development and…

Cites studies that show that environmental effects on ability test scores and school attainment are welcomed, while ability is regarded as a social construct. Asserts that an account of cognitive socialization based on the work of Bernstein and Vygotsky would represent an advance in explaining social differences in educational attainment.…

This paper presents a selective review of the literature addressing the influence of young children's conversational environments and interactions on their psychological understanding of persons. Our dual purposes are to reveal some consensus on the current state of knowledge and to foster a programmatic approach to future research. The initial…

This article explores the nature of developmental and cognitive constructivism as it has historically been related to the early childhood curriculum. The author reflects upon her personal experience in moving from a developmental to a socio-cultural theoretical perspective as an informant to her understanding regarding the education of young…

Background: Fragile X syndrome is one of the world's leading hereditary causes of developmental delay in males. The past decade has witnessed an explosion of research that has begun to unravel the condition at its various levels: from the genetic and brain levels to the cognitive level, and then to the environmental and behavioural levels. Our aim…

The dramatic increase in our understanding of the brain's development throughout childhood has increased our knowledge of the significance of micronutrients, such as iron and vitamin B-12, for this development. Deficiencies of these micronutrients have been shown to have an impact on students' cognitive development. Regardless of this knowledge,…