Compares the cognitive representation of number of 24 American, 25 Chinese, 24 Japanese, and 40 Korean first-graders, and 20 Korean kindergartners. Chinese, Japanese, and Korean children preferred to use a construction of tens and ones to show numbers, whereas English-speaking children preferred to use a collection of units. (RJC)

Emphasizes the benefits of cooperation between researchers in developing a comprehensive model of cognitive development that considers the constraints of human brain structures and the interplay of general laws of development and individual differences in developmental pathways within the context of social and cultural environments. (Author)

Investigated development of reasoning about the teaching of values in school and family contexts among 8-, 10-, and 13-year olds and college students. Found that children and young adults' reasoning is multifaceted and distinguishes between moral values that reflect justice, rights, and moral character traits and other forms of desirable…

Four experiments investigated children's ability to notice and remember events in which the acquisition of factual information occurs. Results indicated that children tend to report they have known newly learned information for a long time, suggesting that children have some understanding of knowledge acquisition, but not at the level of adults.…

Examined the nature of perceptual classification in children and young adults. Found that most children attend selectively to one stimulus dimension when making perceptual classification judgments. Suggests that this developmental trend does not appear to be a holistic-to-analytic shift but rather a trend toward greater consistency in following a…

Two experiments investigated perceptual primacy of dimensional and similarity relations in stimulus classification of mentally retarded children. Results support a distinction between separable and integral stimulus structures, but do not support an integral-to-separable shift in perceptual development. Results suggest implications for…

Suggests that the study of memory needs to be situated within broader conceptual and research contexts. Examines how four contexts accommodate memory phenomena: (1) knowledge; (2) comprehension; (3) context/function; and (4) strategy. Suggests that memories are best examined as knowledge structures resulting from efforts to understand, and that…

Euro-American 2nd- and 4th-grade children (Ms=7.67 and 9.82 years) heard stories about Black and White characters who produced artwork yielding a windfall reward. Children allocated rewards to characters, justified their allocations, and judged the fairness of patterns representing different justice principles. Older children allocated more money…

This longitudinal study investigated the relation between mothers' descriptions of mental states portrayed in pictures and 2- to 4-year-old children's theory of mind. Mothers described pictures to children at 3 different times during the year. Findings indicated that mothers' use of mental state utterances at early time points correlated with…

Two experiments investigated kindergarten through fourth-graders' and adults' ability to evaluate the certainty of deductive inferences, inductive inferences, and guesses, and explain the origins of inferential knowledge. Findings indicated that children rated their own deductions as more certain than guesses, but when judging another person's…

Presents the results of three studies examining children's conception of the mind itself as an independent, active entity. Findings revealed a developing ability in children to interpret and produce statements personifying the mind and provided considerable evidence of children's movement toward a conception of the mind as an active agent…

Children's analogical reasoning has traditionally been measured by classical four-term analogy tasks or problem-solving tasks. Current theories of analogical development and the evidence on which they are based are reviewed. It is concluded that structural views of analogical development are wrong, and knowledge-based accounts of what develops are…

Describes three studies that examined how young children distinguish between the real, physical world and the mental world; between objects and thoughts; and between doing something and imagining it. (HOD)

This study examined the development of implicit race attitudes in American and Japanese children and adults. Implicit ingroup bias was present early in both populations, and remained stable at each age tested (age 6, 10, and adult). Similarity in magnitude and developmental course across these 2 populations suggests that implicit intergroup bias…

Examined 8- and 10-year olds' understanding of the unique features of and potential relations among mental activities. Found a developing tendency to organize mental activities on the degree to which memory was a component of the activity. Results suggest that a constructivist theory of mind develops in later childhood. (AA)