Demonstrates the need for a process-oriented, constructivist approach to understanding infants' categorization abilities. Suggests that emphasizing the distinction between perceptual and conceptual categorization has been an obstacle to forging an approach. Proposes a more microanalytic consideration of features available to infants at different…

Three hypotheses were tested about how children and adults construct intuitive models when encountering a new property. Causal models showed that 10-, 13-, and 19-year-olds transferred principles from familiar property to novel property. None used default model. Younger children's models were affected by domain. Findings suggest that the transfer…

A longitudinal study examined memory span at 5, 7, and 12 months in full-term and low-birth-weight preterm infants. Findings were similar for both groups: longer spans were more difficult, especially at younger ages, memory capacity increased over first year of life, there was marked recency effect for spans of 3 and 4 at all ages, and modest…

Based on Schaie's (1965) general developmental model, various data-driven and theory-based approaches to the exploration and disentangling of age, cohort, and time effects on human behavior have emerged. This paper presents and discusses an advancement of data-driven interpretations that stresses parsimony when interpreting the results of…

Much of the psycho-oncology research that has been conducted to date has focused on understanding the negative psychological and psychosocial sequelae of cancer. However, a growing body of evidence suggests that many cancer survivors report psychological growth following a diagnosis of cancer. Further, there are few studies that examine the…

People acquire spatial information from many sources, including maps, verbal descriptions, and navigating in the environment. The different sources present spatial information in different ways. For example, maps can show many spatial relations simultaneously, but in a description, each spatial relation must be presented sequentially. The present…

This paper discusses a theory of the formation of social stereotyping and prejudice in children. This intergroup-developmental theory of prejudice has three primary goals: to account for the development of stereotyping and prejudice across multiple domains; to provide a developmental account of social stereotyping, outlining how developmental…

In this investigation of the relationships among selected aspects of normal language development, emerging metalinguistic skills, concepts about print, and literacy experiences, 19 children 3 years of age were given 4 tests of language development, 12 metalinguistic tasks measuring phonological awareness, word awareness and structural awareness,…

Inadequacies in most life-span developmental studies are emphasized. A typical cross-sectional comparison of a sample of older adults' performances on a battery of measures revealed that non-surviving subjects and those who refused to be retested 5 and 10 years later scored consistently below retestees. These results point to a heterogeneity in…

Identifies four major areas of recent investigations: cross-cultural studies of political socialization, the focus on the interactive nature of the individual in the process of learning about politics, the need to examine the comparative impacts of the various agencies of political socialization, and methodological and conceptual refinements.…

A cross-sectional study of 1,099 high school students using the Extended Objective Measure of Ego Identify Status showed a developmental progression of vocational identity. Ideological, religious, life-style, and political identity domains were related to but lagged behind vocational identity development. (SK)

Tested three models of children's mathematics word-problem solving based on developmental differences in quantitative conceptual structures: (1) quantitative relations represented as ordered array of mental objects; (2) numbers represented on two tentatively coordinated mental number lines; and (3) numerical operations represented as objects on…

Argues that New Hampshire high-stakes test administered at the end of the third grade is flawed and thus should be discontinued because the questions are not only too abstract, but beyond the knowledge and experience of most third graders. (Contains 23 references.) (PKP)

Identifies developmental literacy characteristics of 3 age groups: 18-36 months, 4-5 years, and 6-8 years. Provides lists of developmentally appropriate books in Spanish. These include bibliographies and summaries meant to assist the teacher in promoting cultural diversity among students. (DG)

Investigated the age at which children first acquire understanding of others' feelings and of ways in which they can affect others' feelings. Also considered the relation of children's development in this domain to their understanding of the nonsocial world. Findings indicated that it was possible to predict the age at which children would pass…