Presents research on pubertal timing and adolescent stress to illustrate the utility of the life-span perspective. Reasons for the apparent dearth of life-span investigations are discussed, the necessity for long-term longitudinal designs is underscored as a major obstacle, and alternative strategies by which life-span research can be implemented…

Investigates the relationship between age and creativity among a sample of 271 manifestly creative women aged 23-87 years. Creativity showed no significant negative correlation with age. However, among control subjects not selected for creativity, the negative correlation between age and creativity scores was statistically significant. (Author/RH)

The low predictive validity of infant tests is discussed in light of current issues in developmental psychology. Considers continuity and discontinuity in the development of early cognitive competence, intellectual heterogeneity problems, and individual-environment transactions. Provides suggestions for increasing predictive validity and indicates…

Four basic assumptions of IQ tests - age constancy, scholastic validity, standard environment and performance suggiciency are alien to Piaget's theory. Heredity cannot be statistically separated from environment; therefore, Piagetian theory would suggest the nature-nurture controversy is devoid of meaning. (ST)

Because developmental theories of Vygotsky, Piaget, and Bandura are far more complex than much of the empirical work based on them, researchers have concentrated on relatively narrow aspects of each man's ideas, in the process magnifying the differences between them. Nevertheless, basic differences do exist in each theorist's conceptualization of…

Agrees with proposition of Tudge and Winterhoff in the previous article that the differences between the developmental theories of Vygotsky, Piaget, and Bandura have been exaggerated over the last 30 years. Perceived differences that distinguished these theories in the early 1960s have diminished dramatically, due in part to the later work of the…

Naturalistic observation of a set of identical twins revealed many differences in personality and motor development. (MS)

Studies the effects of mothers' presence and absence on two infants from birth to two years. (AJ)

Presents a model of cognition and emotion that suggests that feedback between cognition and emotion generates, maintains, and reconfigures interpretations of emotion-eliciting events at micro- and macrodevelopmental time scales and that personality and behavior self-organize in response to fluctuations in perception or cognition and trace…

Presents a brief overview of research and developments in the study of formal operations thought since 1972 along with some speculations concerning future research directions. (Author/MP)

Presents an alternative conceptual model of Reflection-Impulsivity. The alternative dimension delineates both a cognitive style and a cognitive efficiency dimension. A methodological alternative for use with the model is also presented. (BD)

A theoretical proposal is offered concerning individual differences in cognitive processes. The focus is on mental retardation and the comparative problem-solving performance of 'normal' and 'retarded' children. (Author/CS)

Investigates the validity of a semiprojective measure of "engagement" with respect to the differential effects of family size. Engagement style refers to the perception one has of oneself as either doing (agent) or being done to (patient). Subjects were 51 male college students ranging in age from 18 to 26 years. (SS)

Summarizes the theory of psychological differentiation and reviews recent cross-cultural research on the roles of child rearing, culture, and ecology in the development of individual, group, and sex differences in the field dependence-field independence cognitive style component of psychological differentiation. (SS)