Training for or altering the set" resulted in better performance. Subjects trained to perform correctly on the synthesis task did not do significantly better on conservation. (MH)

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

Several studies have shown that the elderly do not perform well on the Piagetian problems of logical thinking; the present set of studies aimed at demonstrating that the elderly maintain the competence to solve such problems. The first study performed by the authors assessed performance of 60 noninstitutionalized middle-class elderly females on…

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)