The conservation of distance and of length and the awareness of the horizontal and of the vertical do seem to significantly precede the measurement of length, but the results did not indicate that these four tasks have any developmental order among themselves. Bibliography, charts. (Author)

This study was designed to determine the age relationships for each type of perceptual strategy used by nonconserving children during tests of conservation of quantity. The results indicate that the type of perceptual strategy reflected in children's answers varied with their age. (JMB)

Portions of this paper were read at the Eastern Psychological Association meeting, April 1968, Washington, D.C. (DR)

Repeated but unadvised attempts have been made by music educators to relate the Piagetian concept of concrete operational thought to children's understanding of music. The attempts have been focused on the apparent link between the child's detection of invariance in musical patterns and the concept of conservation. These attempts are unadvised…

The relationships between perception and conservation of length were investigated in a developmental comparison of judgments of length made by 5-year-olds, 8-year-olds and adults. (GO)

Perceptual counterparts of a series of conservation of length tests were presented to subjects who were categorized as conservers or nonconservers conservation of length pre-tests, and to conservers and nonconservers given conservation length training. Perceptual performance of the untrained nonconservers was significantly worse than that of the…

Data gathered on 92 girls (6-10 years of age) tested on Piagetian conservation tasks supports a theory of perceptual activity leading to decentration and indicates a change in viewing strategy associated with change in conservation status. (WY)

The association of locus of cerebral hemispheric specialization of spatial function with identity and equivalence conservation judgments was tested in a group of four- to six-year-old right-handed children (N=31). (Author/MP)

Research in progress on some unresolved issues regarding the relationship of cognitive development and language acquisition is reported, especially the relationship between conservation of length and knowledge of relevant comparative dimensional adjectives. Much further investigation is recommended and possible educational implications are…

The purpose of this study was to investigate the relationship between 64 six- and seven-year-old children's perception of the reality of television and the Piagetian construct of cognitive development. The children were asked to view two television episodes (a highly similar, closely matched pair from the television series "Star Trek")…

Studied discriminative and investigatory response behavior and effects of response training on children 4-5 to 6-5 years of age. (DR)

A Piagetian framework is provided for understanding patterns of cognitive growth and their relation to early reading achievement among kindergarten children. Reference is made to relevant research, including recent Piagetian interpretations of prereading, language, and logical thinking. Instructional strategies are offered to guide kindergarten…

Cultural, ecological, and educational variables in relation to magical thinking, perceptual flexibility, and logical reasoning seem to be crucial in development of children's judgments and explanations in conservation tasks. (Author)

This paper reviews some of the cognitive and linguistic functions which develop during the period of concrete operational thought (ages 4-9) as defined in Piaget's developmental theory. Discussion centers on the formation of classes and relations and the development of the language associated with these operations. Also discussed are conservation…

The conservation task is analyzed into three essential components, a theoretical framework for interpreting cross-cultural studies is presented, and its applicability to existing empirical results is demonstrated. (JM)