Based on author's PhD dissertation, University of California, Los Angeles (1967).

Research supported by a grant from the U.S. Office of Education. 1

Study supported by grant number 00870-05 from the National Institute of Child Health and Human Development.

To investigate the development of children's knowledge of the intension and extension of four natural concepts (cup, scissors, money, and musical instrument), three questions were explored in an experiment involving one-hundred-and-twenty 3-, 5-, and 7-year-old children (40 children for each age group). Extension was measured in a verbal labeling…

The patterns of use of computer-based communication technologies in knowledge synthesis are described by looking at the way groups use the technology for efforts that have at least some qualities of knowledge synthesis. A chart of basic options for communication through computers is provided, showing the generic class of systems, examples of…

In the Soviet theory of cognitive development, originated by Vygotsky and elaborated by Leont'ev, acts occur at three levels of abstraction: activities, actions, and operations. According to this theory, an activity has an associated motive and may function directively as a motive. While many activities are possible, one activity tends to…

The study investigated whether training in object permanence and/or means-end followed by a language training program will result in the learning of more language (as measured by number of words and syntactic complexity) than the language training program alone with 32 profoundly retarded children (3 to 10 years old). Secondary goals included…

THE LEARNING STYLE OF DISADVANTAGED CHILDREN IS THE INDUCTIVE, RATHER THAN THE DEDUCTIVE, DISCOVERY METHOD OF LEARNING. BY STARTING WITH A PARTICULAR CONCRETE ITEM WITHIN THE CHILD'S FRAME OF REFERENCE, IT BECOMES EASIER FOR HIM TO MAKE GENERALIZATIONS. THROUGH SKILLFUL QUESTIONING, THE TEACHER CAN HELP THE CHILD SEARCH OUT AND UNDERSTAND AN…

ABOUT 70 FEMALE UNIVERSITY STUDENTS PARTICIPATED IN THIS INVESTIGATION OF THE EFFECT OF SOCIAL PRESSURE ON CONCEPT IDENTIFICATION TASKS AND ITS TRANSFER EFFECT FROM ONE TASK TO ANOTHER. THE SUBJECTS WERE RANDOMLY ASSIGNED TO FIVE EXPERIMENTAL GROUPS -- (1) A CONTROL GROUP WITHOUT FEEDBACK, (2) A VERIDICAL GROUP WITH CORRECT FEEDBACK ON THE TWO…

TWO EXPERIMENTS WERE CONDUCTED TO DETERMINE THE EFFECTS OF POSTFEEDBACK (POST-IF) INTERVALS OF DIFFERENT LENGTHS ON OVERALL PERFORMANCE IN CONCEPT IDENTIFICATION PROBLEMS. THE POST-IF INTERVAL REPRESENTS THE TIME BETWEEN PRESENTATION OF INFORMATIVE FEEDBACK ON ONE TRIAL AND THE ONSET OF THE NEXT STIMULUS PATTERN. THE EXPERIMENTS WERE DESIGNED TO…

THE NATURE OF COMPREHENSION IS DEFINED AND CLARIFIED. THE LITERATURE IS SURVEYED TO SHOW THAT THE DEVELOPMENT OF CONCEPTS IS IMPORTANT IN INTELLECTUAL ACTIVITIES. IT IS POINTED OUT THAT CONCEPTS ARE BUILT FROM PERCEPTS, IMAGES, SENSATION, AND MEMORIES, AND THAT THE STEPS WHICH ARE EMPLOYED AS CONCEPTS ARE BUILT AND REFINED AND INCLUDE PERCEIVING,…