Several theories of sequential changes in intellectual functioning during adolescence and adulthood are addressed in this article. Methodological difficulties of testing these theories through longitudinal research are summarized. Educational implications of the Reflective Judgment Theory on research in intellectual development during college…

Reported is a longitudinal study in which families with preschool children were observed, interviewed, and tested over two years following the parents' divorce and compared with a sample of intact families. Findings on the impact of divorce on individuals, on family interactions, and on children's social and intellectual development are presented.…

A four-prong instructional model for intellectual-skills development is described. The four prongs are: familiarization, intra-group problem solving, inter-group problem solving, and individual problem solving. A psychological model of what is to be taught, the triarchic theory of human intelligence, provides the underpinning of the instructional…

Developmental characteristics of students in middle schools (grades 5-8) are detailed and a social studies curriculum tailored to their particular needs is outlined. (JMF)

Intended as a nontechnical review of current scientific knowledge in the field, this essay considers the nature of primary and secondary intellectual abilities, plus the major features of, and the development of individual differences in, the skills and capacities constituting intelligence. Part of a theme issue on intelligence. (Author/SJL)