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And Others; Kramer, Judith A. – Child Development, 1975
An investigation of Piaget's theory of object concept development through a series of six tasks administered in a combined longitudinal/cross-sectional design (which incorporated a number of methodological controls). Subjects were 36 infants who received the six tasks during each of three testing sessions over a 6-month period. (Author/ED)
Descriptors: Age Differences, Cognitive Development, Cross Sectional Studies, Developmental Tasks
Winborne, Duvon G.; Randolph, Suzanne M. – 1991
This study examined the interaction between infant behavior and maternal ethnocentric attitudes and expectations. The ethnomethodological approach used in this study was guided by the assumption that it is essential for an investigator to consider the broad cultural context in which behavior is studied. The behavior of 80 African-American neonates…
Descriptors: Black Mothers, Blacks, Cognitive Development, Cultural Awareness

Siegler, Robert S. – Monographs of the Society for Research in Child Development, 1981
Describes and discusses the rule-assessment approach, a new research strategy for studying developmental sequences in children's acquisition of knowledge. Four experiments were conducted to illustrate the utility of this approach across a variety of concepts and a wide range of ages (three-year-olds to college students). (Author/CM)
Descriptors: Adolescents, Age Differences, Children, Cognitive Development
Hooper, Frank H.; Sipple, Thomas S. – 1975
Two experiments which investigated the young child's ability to deal with multiplicative classes and relations (considered behavioral indices of concrete operations thought) in double series and cross class matrices are described and discussed. In the initial study, 160 children from preschool through grade 2 received six matrix subtasks…
Descriptors: Age Differences, Classification, Cognitive Development, Cognitive Processes
American Institutes for Research in the Behavioral Sciences, Palo Alto, CA. – 1969
The Perry Preschool Project assessed longitudinal effects of a 2-year program consisting of a daily 3-hour cognitively oriented nursery, a weekly 90-minute home visit, and less frequent group meetings of the pupils' parents. Subjects consisted of 3- and 4-year-old Negro disadvantaged and functionally retarded children, whose pretest scores on the…
Descriptors: Cognitive Development, Cognitive Processes, Compensatory Education, Developmental Tasks
Rauh, Hellgard – 1973
In this study an attempt was made to obtain a developmental dimension for estimating longitudinal development on the basis of cross-sectional data. To check the validity of this approach, the cross-sectional data were compared with true longitudinal data. Forty-three public school children were given a series of conservation tasks in four…
Descriptors: Child Development, Cognitive Development, Conservation (Concept), Cross Sectional Studies
Mediax Associates, Inc., Westport, CT. – 1980
The second of three volumes, this document provides a description of the coding system, the rules and the procedures followed in interpreting and classifying 4,896 statements of desired program effects on Head Start children. The statements had been identified and rated by parents, staff and teachers in Input Workshops conducted by the Head Start…
Descriptors: Academic Achievement, Attitudes, Classification, Cognitive Development