Examined the impact of object boundaries on 3-, 4-, and 5-year-olds' quantitative reasoning. Asked subjects to choose between alternative collections that differed in number and size of cookies and in aggregate amount. Found that children were influenced by size of individual cookies at 3 years but were generally unsuccessful in aggregating size…

Examined analytic methods for describing children's social risk. Found that the individual-risk-variables approach provided better overall prediction of developmental outcomes at a particular age. The risk-factor approach provided good prediction of developmental trajectories with moderate to large sample sizes. The risk-index was useful for…

Suggests ways to use dynamic systems analysis to illuminate the pluralistic and multidimensional model described by Larivee, Normandeau, and Parent (2000). Issues discussed include the characteristics of developmental transitions, such as hysteresis; nature of growth processes, such as hierarchical development or predator-prey interactions; and…

Examined infant verbal and nonverbal cognitive development for 1,937 pairs of same-sex 2-year-old twins. Found that verbal and nonverbal development correlated .42. Genetic factors were responsible for less than half of this phenotypic correlation. The genetic correlation between verbal and nonverbal abilities was only .30, suggesting that genetic…

Observes the progressive change in the cognitive development of students (n=141) over the course of their secondary education in an Australian private school. Analyzes data to investigate children's cognitive development across years 8, 10, and 12. Examines the influence of the Cognitive Acceleration through Science Education (CASE) Thinking…

Describes how complex thinking evolves during the 20s based on a longitudinal study with 39 men and women age 18 to 30. Themes that characterize this epistemological and intrapersonal growth are translated to implications for student affairs. (Contains 22 references.) (Author/GCP)

Proposes that humans may have evolved a special sensitivity to certain types of social information during rough-and-tumble play that facilitates social cognition. Describes the cognitive benefits of physical play as providing a break from demanding intellectual tasks and hypothesizes that physical play is related to gender differences in spatial…

Examined effect of maternal support on the development of counting and cardinality in young children at 32, 38, and 44 months of age. At the two earlier times, children were more successful at counting than determining cardinal relationships in both supported and unsupported contexts. Findings suggest that both social and cognitive biases contain…

Examined mothers' patterns of welfare receipt in the 3 years following birth of a child. Found strong negative associations between receiving welfare and parenting behavior and child outcomes at age three. Parenting by mothers who had left welfare by their child's third birthday was more likely to be authoritarian if mother had left public…

Investigates how much time parents devote to environmental activities and to what extent they are involved with their children in participation in such events. Focuses on two different settings, home and school. Reports cultural and educational differences between Mexican and English parents. (Contains 24 references.) (Author/YDS)

Describes how the Spectrum Teaching Styles can help physical educators develop an instructional environment that allows learners to meet the national content standards for physical education while providing learners with a quality educational experience. The paper discusses the development and use of the Spectrum and the development of…

Addresses the importance of client conceptualization skills in counseling as well as the limitations of child conceptualization skills in counseling. Provides a rough overview of the applicable points in Piaget's theory of cognitive development and a discussion of how these points relate to conceptualization skills in counseling. (RS)

Evaluation of social-cognitive skills in 23 young children with autism or other developmental delays found tests involving others' attention were more difficult for children with autism than tests involving others' behavior. However, the typical developmental pattern of first sharing, then following, and then directing attention or behavior was…

Three studies investigated 5- to 8-year-olds' ability to solve partitive division problems when presented with a concrete model of a problem. Children found it easier to solve problems in Grouping-by-Divisor condition than in Grouping-by-Quotient condition, although there was evidence of developmental improvement in tasks. Findings suggest that…

Suggests a model for the development of mental representation. Explores empiricist and constructivist models and maintains that the constructivist model provides a better ground for theory building. Evaluates Piaget's constructivist account of the emergence of mental representation. Proposes that his account is insufficient and suggests a…