The article provides a review of recent research on insight problem-solving performance. We discuss what insight problems are, the different types of classic and newer insight problems, and how we can classify them. We also explain some of the other aspects that affect insight performance, such as hints, analogs, training, thinking aloud, and…

Presents a brief overview of research and developments in the study of formal operations thought since 1972 along with some speculations concerning future research directions. (Author/MP)

This paper proposes a theoretical framework of moral and immoral development which considers not only reasoning, but also behavior and situational variables. Major theories of moral development proposed by Freud, Piaget, Kohlberg, Haan, and Hogan are used to illustrate the notion that, although empirical evidence shows that most individuals…