Preschoolers' event descriptions indicate that they are able to engage in displaced reference, use timeless verb forms, report optional and conditional relationships, appropriately sequence events, engage in temporal reversibility, and appropriately use a number of relational terms, all at a much younger age than has traditionally been believed…

Increase in sex-role knowledge represents an early stage of the development of sex role stereotypes in children, which is followed by a decrease in the extent of sex-role discrimination. This process is related to the acquisition of classificatory skills. Groups of children aged 4-10 years were tested for their sex role stereotypes and…

Metalinguistic cognition is the ability to think about language, to comment on it, to produce it, to comprehend it, and to manipulate language as an object with many identifiable and functional parts. It appears that metalinguistic skill development is related to cognitive development and is dependent on metalinguistic awareness which runs…

Some feel that a persistent shortcoming of the collective views of human action is that they often advocate a view of the individual as merely a bearer or token for the group to which he or she belongs. These theories do not account for individual choice. This project attempts to arrive at a general critique of individualism, drawing on a number…

The science learning cycle developed by Robert Karplus and others in the 1960's has been a useful model for many science teachers and researchers. This model stresses the use of structured inquiry to organize knowledge acquisition and problem solving. Recent research in the cognitive science tradition, however, has shown that learning and problem…

A survey of research findings on environmental and person variables provides clues as to what is required in a high quality infant-toddler program. One of the most important components of such a program is a loving, responsive caregiver. Research has shown that there are specific adult qualities that nurture the roots of intellectual competence,…

Research using expectancy models has shown contraceptive choice among adults to be a rational process in that intentions and behaviors reflect an individual's beliefs, values, attitudes, and perceptions of social norms. This study examined whether such an approach could accurately represent adolescents' contraceptive decision-making. It used the…

The study examined the effectiveness of enhancing perceptual differentiation in the training of four developmentally delayed preschool children who were so low-functioning that they did not demonstrate oddity responding (ability to choose one distinct stimulus from a group of identical stimuli). Instead of the Arabic numerals used in the original…

This exploratory study was designed to investigate the explanatory and predictive power of the transaction between affect and cognition in the account of transitions across developmental stages within various domains. Subjects were 21 undergraduate college students from a course on intellectual development taught at Tufts University…

To examine whether or not retarded individuals have the same structure of intelligence as normal IQ individuals, test scores from the Wechsler Intelligence Scale for Children-Revised (WISC-R), Reitan's Trail Making Test (TMT), and Beery's Developmental Test of Visual Motor Integration (VMI) for both a mildly retarded and normal IQ population of…

This paper reports a follow-up study of 5-, 7-, and 9-year-old subjects who had participated in an investigation of the nature of children's and adults' ability to graphically represent expressive qualities (i.e., happy, sad, angry, loud, quiet, hard). In the original study, the use of literal representation (such as a smiling face on a tree) and…

An experiment was conducted to test the hypothesis (derived from Piaget's theory of cognitive development) that the structure of children's drawings and play-constructions, being expressions of the same underlying function, should be similar. Two groups of 4- and 6-year-old nursery school children were given a testing task consisting of an orally…

Learning to program involves developing an understanding of two hierarchies of concepts. One hierarchy consists of data and extends from very literal data (which represents only itself) to very abstract data incorporating variable values in complex interrelationships. The other hierarchy consists of the operations performed on the data and extends…

The two studies reported here explore recent findings indicating that few relationships exist between environmental stimulation and cognitive development during the first 6 months of life. In the first study, three separate home visits (two 90 minutes and one 30 minutes long) were used to assess the physical and social environments of 100…

Data obtained under naturalistic conditions do not support the notion of a close fit between the growth of geometric concepts during the concrete operational period and "realism" in art. Realism here refers to the ability to portray the objective proportions of a figure, to coordinate spatial relations and distances, and to represent a…