Low IQ students do not communicate the same kinds of meaning about identical task terms as do students with higher ability. They resort to use of more quality type concepts in which they interject their own subjective view of reality rather than the more objectively oriented concepts of process and structure. (CK)

Review of the factor matrix indicated that Piagetian reasoning tasks involve abilities separate from those measured by standard tests of intelligence and achievement. (Authors)

When differences in level of motivation were controlled, all of the previously found differences between firstborn and later born disappeared. (Authors)

Boys IQ was positively correlated with paternal nurturance, and negatively correlated with paternal restrictiveness. (Author)

Author reviews gains made in the last decade in knowledge of the nature of child development and learning, and cautions against a lessening of commitment. (MB)