Two studies were designed to examine the relationship between moral judgment and role-taking in young children. In Study I, 30 lower class and 30 middle class five-year-olds were presented with affective, cognitive and perceptual role-taking tasks. Task performances were then examined in relation to four dimensions of moral…

A study explored working memory (WM) capacity, WM task requirements, as well as effects between WM, skills, knowledge base, and intelligence in adults with mental retardation and children aged 3-6 years. Adults were better on measures reflecting skills and knowledge base. Children performed better in phonological and visuo-spatial WM tasks.…

Two studies examined modifiability in intellectual functioning in older adults. The fluid-crystallized theory provided a theory base for the research. (Fluid intelligence follows a normative decline through adulthood, while crystallized intelligence remains stable or even increases.) In the first study thirty subjects (average age 69.2)…

This paper discusses research exploring the performance factors involved in studies which test for formal operations. It is suggested that several previous studies dealing with formal operations confound performance and competence in determining the extent of subjects' formal operations schemata. Factors which might account for performance…

This paper reviews studies in which scores on Piagetian tests of logical thought were correlated with IQ, mental age (MA) and chronological age (CA), and examines the possible effects of the size of the age range and mean age of subjects on these correlations. The data included 44 groups of subjects obtained from 36 studies in which Piagetian and…

In an effort to isolate the emergence and causes of social class differences in intellectual performance, this longitudinal study was undertaken as a follow-up on a cross-sectional study that yielded no social class differences on the Cattell Infant Intelligence Scale for 12-, 18-, and 24-month-old black children. In the present study, 89 children…

This collection of essays about intelligence stems from the revived nature-nurture controversy about the origins of mental abilities, led notably by Arthur Jensen, whose article in 1969 created a furore in the U.S.A., and more lately by H. J. Eysenck in Britain. In planning this book, an attempt has been made to step back from the debate itself…

Cognitive style identifies the ways individuals react to different situations. Cognitive styles include stable attitudes, preferences, or habitual strategies that distinguish the individual styles of perceiving, remembering, thinking, and solving problems. Intended for researchers, psychologists, child development specialists, and early childhood…

THIS PAPER (WHICH WAS PREPARED FOR A SYMPOSIUM ON "THE STUDY OF PERSONALITY" AT RICE UNIVERSITY, HOUSTON, NOVEMBER, 1966) REVIEWS THE ADVANCES MADE BY INTERDISCIPLINARY LINGUISTIC RESEARCH INTO THE EFFECTS OF EARLY BILINGUALISM. USING THE SAUSSUREAN MODEL OF THE LINGUISTIC SIGN, A DISTINCTION IS MADE BETWEEN "COORDINATE" AND "COMPOUND" BILINGUALS.…

This longitudinal study attempted to assess how environmental factors affect the development of competence, as defined by White, by delineating in detail the everyday environmental transactions of a group of children from age 1 to 3. The key questions of this research were: (1) Are certain experiences encountered by the young child in his everyday…

Are children intellectually impaired as a result of low birth weight and does relative impairment change as children grow older? Premature infants from a range of socioeconomic groups were studied in five rounds over 13 years to provide neurological, psychological, achievement, and sociological data on 582 children in three birth weight groups. A…

Current research indicates the possible influence of IE development on cognitive development. Efforts are being made to identify behaviors by which parents or teachers can increase development of internal control expectancies in preschool children. Studies correlating children's IE scores with various mother behaviors or mother-child interaction…

Research supported by a grant from the Carnegie Corporation.

In behavioral science research, language has been increasingly seen to reflect the concepts that the child has acquired prior to, and hence independent of, the acquisition of language. Analyses based on this idea are confined largely to words that denote clear perceptual referents. Language, however, contains many terms that have no portrayable…

Areas of agreement and disagreement concerning intellectual developmental and the problems of mental retardation espoused by the author and by Uzgiris are discussed in this paper. The importance of environmental factors, along with the genetic and/or constitutional nature of the organism on which these environmental events impinge, is seen as…