We investigated time-related patterns in levels of cognitive performance during the period from 1970 to 1993 based on data from Swedish draft boards. The conscripts, including more than a million 18-19-year old men, had taken one of two versions of the Swedish enlistment battery (SEB67; 1970-1979 or SEB80; 1980-1993), each composed of four…

The work of Jean Piaget stresses the point that intellectual functioning and growth from one stage of cognitive development to the next depends more on the quality of one's experience than on exposure to factual knowledge. Piaget's theoretical model and its implications and applications for the classroom teacher are reviewed. (Editor/RK)

This special issue is devoted to the cultural-historical school of thought about mental development based on the work of Lev Vygotsky. The research of Vygotsky addressed the sociocultural basis of higher-level cognitive functions, and ascribed an influential role to human speech and other mediational tools in originating changes in cognition and…

Reports a study of the correlation between intellectual development and students' understanding of scientific concepts and science processes. Results are reported concerning the reliability and validity of Piagetian or Piagetian-like tasks as measures of students' level of formal reasoning. (Author/SA)

The research summarized in this paper was conducted on the Pine Ridge Indian Reservation in South Dakota. The purpose of the developmental study was to explore the cognitive aspect of development rather than to explore the personality as a whole. The Clinical Exploratory Method of Piaget was employed, which focuses primarily upon an experimental…

From the monthly Saturday Review supplement, "Education in America, sponsored by the Charles F. Kettering Foundation.

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)…

Proposes a structural model of intelligence based on the significant aspects of Blacks' cognitive development. Discusses alternative perspectives on the understanding of macro-level activities, modifications in the general approach to cognitive assessment, and the formulation of pedagogical guidelines. (FMW)

This volume of the "Disadvantaged Child" Series presents papers on all aspects of the compensatory education debate, written in large part by many of the educators who played leading roles in this program. Part I provides a comprehensive overall picture of the program. Part II discusses culture-fair testing, "Jensenism" and…

This volume is a collection of informative integrative reviews of primary research and development reports relevant to workers and students in early childhood education. The articles are: (1) "Psychological Perspectives and Early Childhood Education: Some Relations between Theory and Practice"; (2) "Children's Friendships in School…

A review of Piaget's theory and research on children's cognitive development is presented, including a discussion of the psychological structures of intelligence, developmental constructivism, and the evolution of knowledge as a subject-object relation. Piaget's assessment techniques are summarized, including moral development, number…