These results stand in sharp contrast to those previously reported which concluded that most college students will abandon conservation; the present finding is of strong (though less than perfect) resistance. (Authors/CB)

Given a chance to eat the candy or drink the juice in this study, the 5-year-olds, 7-year-olds and young adults failed to conserve and made choices based on what they said was appearance of greater quantity rather than upon the already established equivalencies. (Authors/CB)

Although the ability to conserve number held up well with age, quantity conservation performance was generally lower in the subjects over 65 years of age than in the college and adult age groups. (Author)

Compensation as assessed by any one test or criterion used is more difficult than conservation. And, the understanding of the compensation principle, as manifested in verbal statements, continues to develop well after the age at which liquid conservation may be taken for granted. (Authors)

A combination of readiness and body-part training was the most effective in producing number conservation with external objects. (Authors)

Results show that both kindergarten nonconservers and kindergarten conservers found height most salient. Third-grade conservers found quantity most salient but could easily attend to height and width. (Author/CB)

Four experiments are described in which observational learning was found on multidimensional conservation tasks. (MB)

Results indicate that identity conservation generally does not precede equivalence conservation; instead the two conservations tend to co-occur. (Authors)

Lower-class children required significantly more training task repetitions to learn a conservation task than did middle-class children. (Authors)

Analyses revealed consistent support for the hypothesis that number conservation is developmentally prior to liquid quantity conservation. (Authors)