This study tested 148 preschoolers between the ages of 48 and 72 months on a Piagetian number conservation task. Children's judgment accuracy, estimation, and response latency were measured. Children were also questioned about the number conservation principle. A four-step developmental sequence was hypothesized: (1) nonconservation; (2) correct…

A study examined the developmental shifts in the importance of linguistic components of words to single word decoding. Subjects, 1200 children ages 6-7, 8-9, and 10-12.5 years who were the normative sample of the Kaufman Assessment Battery for Children (K-ABC), were tested using a word recognition test, the Reading Decoding Subtest of the K-ABC.…

This study examined characteristics of a group of adolescent mothers and their infants who participated in an intervention program run by a public health department. The subjects were administered a structured interview and a measure of self-esteem, and efforts were made to obtain their school records from local public schools. The Mental Scale of…

Adolescence was the focus of an Urban Development Forum, a component of the Research for Better Schools, that explored the factors of effective schooling in terms of their impact on young people in large, urban systems. This forum featured a major presentation by Joseph Adelson. Focusing his presentation on the cognitive growth in adolescence, he…

This four-chapter monograph, translated from a 1977 Russian book written originally in Russian for Russians, describes methodology and results of the study of cognitive activity in children with cerebral palsy. An initial chapter reviews research on impairments in cognitive activity and speech defects in such children and on methods of…

Approximately 500 works concerning acquisition of French as a first or second language by children from infancy to adolescence are listed. Although works on prelinguistic development are not included, research on comprehension during this period is. Studies of early simultaneous bilingual development are included if one of the languages is French.…

Previous research in classification preference has focused on only a few selected age groups. To investigate the classification preferences of individuals from early childhood through old age in the same study, 144 individuals between the ages of 4 and 70 completed a revised version of the Conceptual Styles Test. Analysis of results showed that…

Suggesting that the concept of structure employed by political scientists in the analysis of belief systems is inadequate and misleading, the paper discusses Jean Piaget's concept of egocentrism as a theoretical alternative to belief systems analysis. The purpose of the paper is to provide political scientists with a short but comprehensive…

Five papers are presented from a 1982 conference on "Developmental and Clinical Aspects of Young Children's Play." In the first paper ("Cognitive Characteristics of Young Children's Play,") S. Rogers summarizes J. Piaget's theories on developmental stages, discusses the relationship of practice play to learning, and then…

Reviews the literature from the three standpoints of learning theory, psycho-analysis, and cognitive developmental theory and suggests that investigations explore specific socialization practices that contribute to both personal integration and moral maturity. (Author/AM)

A criterion for development of syllabi for mathematics courses is discussed. This criterion is based on the biogenetic law that individuals develop through all the stages of the development of the species. (SD)

Describes an experiment in which physics students were assigned to groups according to Piaget's stages of cognitive development and members of each group were asked to solve an elementary mechanics problem. Analysis revealed that the majority of students, those who were not operating at a formal level of development, may have done more harm than…

Two studies of 7-year-olds and college students tested the hypothesis of a developmental difference in the degree to which subjects' memory performance was controlled by categorical properties vs. specific instance properties of test items. (GO)

Teachers' levels of Inferred Self Concept were related positively to students' cognitive growth for four of five subtests given the students. (RC)

Reports on a study conducted to obtain indications of changes in mental level from high school through college and to investigate the relationship of cognitive level to SAT scores, college grades, and attrition. (PEB)