Several experiments with 8- to 9-year-old children are reported to demonstrate that "decalage" observed between success in problems of conservation of weight, volume, and density is due to the different task situation as presented by Piaget and Inhelder. (Author)

The author examines Novak's position that science and mathematics educators should discard Piaget's theory of intellectual development in favor of Ausubel's theory of meaningful learning as a guide for teaching practice and research. (PB)

Programed instruction accelerated the ability of 62 children, ages four to six, in acquiring the concept of number conservation. (CP)

This study found that 23 hearing-impaired and 25 normally hearing children (ages 7-14) did not differ on nonverbal intelligence, but the hearing-impaired children obtained lower scores than normally hearing peers on a social decentration task and a nonsocial decentration task. Social decentration was positively correlated with nonsocial…

The study with 23 severely hearing impaired adolescents found that subjects using cued speech performed highest on Piagetian conservation problems, the oral-aural group performed better on linguistically-sensitive metaphor problems. Differences were not, however, statistically significant. (Author/DB)

This study of 145 middle class first grade students investigated whether a relationship exists between early acquisition of Piagetian conservation tasks and gifted performance on a mental abilities test. Students were evaluated individually on tasks involving the conservation of number, of liquid quantity, and of mass. A moderate correlation was…

Verbal and pictorial class-inclusion questions were presented to children in kindergarten through grade 6. The data indicates that the purely verbal form of the question was less difficult for the children to answer than the pictorial form. (Author/CS)

The general purposes of this study were to analyze responses on five Piagetian formal operational tasks in a test-retest situation to determine the extent to which taking a pretest effected scores on posttests and to determine task and examiner reliabilities. Significant test score gains on Piagetian tasks appeared to result from test-retest…

In a program to facilitate the emergence of number conservation in preschool children, 45 middle class children and 64 Head Start and Title I children were trained to deal with perceptual confusions so that they could utilize this understanding to disregard irrelevant changes, such as spatial rearrangement, and thereby become aware of conservation…

The purpose of this study was to investigate the relationship between conservation status and relational terms by means of the semantic differential. Sixty-one children classified according to Piaget's three levels of conservation development judged the relational terms "more" and "less" on concrete semantic differential…

An analysis of the quantitative processes underlying conservation of quantity is presented. Models of three quantitative operators--subitizing, counting, and estimation--are derived from adult performance in quantification tasks, and some features of the operators are described. The emergence of conservation is described in terms of the…

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…

Primary school children at different stages of acquisition of conservation pretended that their judgments on a series of conservation problems were the opposite of their actual beliefs. The nonconservers and transitional conservers made significant gains in conservation, while the conservers did not regress. Cognitive dissonance training is…

Fourth-grade control students were given a multiple-choice problem involving conservation of weight. Experimental group subjects were given a fictitious choice response distribution with conflicting reasons. Curiosity for confirmation, progress in generalizing the principle of conservation, and positive correlation between curiosity and progress…