TWO HYPOTHESES RELATED TO HYPOTHESIS INTERFERENCE IN CONCEPT PERFORMANCE OF YOUNG CHILDREN WERE TESTED/ (1) STUDENTS MAKE MORE CLASSIFICATIONS WHEN STIMULUS OBJECTS ARE PRESENTED SEQUENTIALLY THAN WHEN STIMULUS OBJECTS ARE PRESENTED SIMULTANEOUSLY, AND (2) REDUCING THE NUMBER OF STIMULUS OBJECTS INCREASES CLASSIFICATION SPEED. MATCHED ON THE BASIS…

The present research was undertaken in the attempt to gain knowledge about the nature of qualitative changes in vocabulary performance across the major portion of the life span. (Author)

A study was conducted to clarify a number of issues related to Piaget's theory of invariant sequantiality in child cognitive development. Ss were 143 middle-class white children of bright, average and retarded psychometric abilities (measured by performance on the Stanford-Binet Intelligence Test). Bright and average Ss were chronologically aged…

This preschool program concentrated on language development, self-concept, perception, and concept formation. Also, a vertically organized program of reading, math, science, and creative dramatics, along with parent activity, inservice training, and dissemination, covered prekindergarten through the third grade. Individual and small group work…

Based on the belief that structured preschool activities aid in the development of disadvantaged children, this study attempted (1) to evolve a tutorial program to accelerate spontaneous development in disadvantaged children and prevent cognitive and language deficits, and (2) to assess growth of the infant's cognitive and language development…

The purpose of this study was to develop and evaluate a diagnostically based curriculum for disadvantaged preschool children. For each of 3 years, 45 lower class Appalachian white 5-year-olds were equally divided into three groups. The experimental preschool group (EPS) received a structural curriculum designed to remedy specific, diagnosed…

This study determined which intellectual abilities account for IQ changes over the school year. All the Head Start subjects involved in the study (35 boys and 33 girls, mean age 44.1 months) lived in poverty under conditions of urban deterioration. The subjects were initially given the Standord-Binet Intelligence Scale in the fall and were tested…

The following research projects are described in this annual report: (1) "Concept Learning in Discrimination Tasks," which indicates that kindergarten children are able to discriminate the letters "b,""d,""p," and "q"; (2) "Discrimination of Letter-like Forms," indicating that nursery…

THE MAJOR PURPOSE OF THIS RESEARCH WAS TO DETERMINE WHETHER TRAINING IN SPECIFIC COGNITIVE PROCESSES IS EFFECTIVE IN INCREASING THE COGNITIVE FUNCTIONING OF RETARDED CHILDREN. IN PHASE I OF THE PROJECT, 51 EDUCABLE RETARDED AND 18 NORMAL SUBJECTS RECEIVED A 20-DAY PROGRAM IN SIMILARITIES-DIFFERENCES CONCEPT FORMATION AND WERE COMPARED WITH 42…

The Early Childhood Education Project (ECEP) is an experiment in the effects of educational intervention of two-year-old first-born children from impoverished black families. Twenty ECEP children were compared to a control group on the basis of a battery of pre- and post-tests after six months of intervention training. Teachers attempted to…