Suggests some difficulties and challenges in understanding and teaching Piaget's new theory. Outlines some differences between Piaget's new and standard theories, such as the diminished status of the emergent skills that mark the onset of concrete operational thinking and the perception of achievements in concrete operations as empirical…

In an investigation of the relationship of the logical operations to other developmental sequences, 30 college students were assessed as to logical operational ability and poetic interpretation. The strong relation found between these two abilities supports the theoretically predicted applicability of central, formal reasoning structures to…

Results of administering Piagetian tests of concrete and formal operations to 6- to 11-year-olds whose IQ's were in excess of 160 support the reality of Piaget's stage structures but suggest that the speed with which tasks within a stage are mastered is a function of intelligence in the psychometric sense. (Author/SDH)