Lawrence Kohlberg

1927 - 1987

Kohlberg is best known for his research on the moral development in children. He received the B.A. degree and the Ph.D. from the University of Chicago in 1958. The following year, he went to Yale University and remained there until 1961. After several interim appointments he went to Harvard in 1967. His principal work was Essays on moral development (2 vols.).Following the lines of Piaget, Kohlberg stated that children followed moral development in three stages: (1) in the preconditioned level children's moral development followed from external standards. (2) in the conventional level morality is basically one of the following correct rules, and (3) in the conventional level morality is basically one of the shared standards of rights and duties. Each of these levels comprised two stages of orientation. The first is characterized by obedience and punishment and naive egoism; the second by "good boy" and authority, and the third combined legalism and conscience. Like Piaget's theory, Kohlberg's is one of cognitive development. His results were the result of 20 years of longitudinal study.