Information-processing students solving problems in the 1960s and 1970s accepted the tradition of early experimental psychology in concentrating primarily on the study of "knowledge-lean" tasks in which competence can usually be acquired over short periods of learning and experience. In recent years, experts have examined knowledge-rich…

Examines the articulation of theoretical issues in learning that is taking place through studies of instruction that are grounded in descriptions of competence. Discusses programs for the acquisition of proceduralized knowledge, the development of self-regulatory strategies, and the structuring of knowledge for problem solving. (JS)

Presents an evaluation of "Smithtown," an intelligent tutoring system designed to teach inductive inquiry skills and principles of basic microeconomics. Two studies of individual differences in learning are described, including a comparison of knowledge acquisition with traditional instruction; hypotheses tested are discussed; and the…