This article stresses the need to use words in relationship to reality and to make language a means of communication rather than a means of deception. (PD)

A total of 4six children with a mean age of 6 years were randomly assigned to either a standard or modified testing condition in order to assess their conservation judgments. Significantly higher levels of "conserving" judgments were obtained in the modified condition. (Author/CI)

This study was supported by a grant from the Carnegie Corporation to Educational Testing Service. (MH)

Presents a derivation of Kepler's Third Law for elliptical orbits that requires students to have a knowledge of angular momentum and conservation of energy. (JRH)

Micronesian children residing on Truk and Kosrae were examined for performance on eight conservation tasks and on one task each of centration and reversibility (generally precursors of conservation in Piaget's theory of cognitive development). A total of 75 children were tested--33 in the village of Moen, Truk, and 42 in all the villages of…

In a year-long test, the University of Illinois reduced fuel consumption 11 percent by installing baffles in the firetubes of its boilers. (Author)

Sixty middle class children (mean age 78.6 months) were tested to determine if recognition of identity precedes recognition of quantitative equivalence when dealing with quantities of liquids. When measuring conservation, the importance of two aspects of language (semantics and syntax) is stressed. (Author/AJ)

Reinforcement training was shown to facilitate acquisition of conservation of weight, while active participation was no more effective than passive observation. This report is based on a thesis submitted in partial fulfillment of requirements for the M.S. degree by the first author under the supervision of the second author. (MH)

This study replicated a study by Mehler and Bever (1967) which had reported conservation observed in very young children between 2 years 4 months and 2 years 7 months old. Both Piaget (1968) and Bielen (1968) criticized the Mehler-Bever finding, claiming that true conservation had not been demonstrated. The investigator in the present study sought…

This study examined the effects of providing training in identity, reversibility, and compensation explanations, alone and in every combination, for eight matched groups of 48 mildly retarded, nonconserving children. (Author/JMB)

Seventy second-grade children who had succeeded on pretests involving liquid conservation observed a nonconserving model and were subsequently retested. Regression to nonconservation was obtained only among some of the children who had been submitted to maximal pressure in the presence of an adult model. (Author/JMB)