Psychologist Lawrence Kohlberg observed that people progress through sequential stages of moral development according to the two major variables of age and reasoning.

Sequential Stages

Sequential stages are the consecutive phases or steps in a process or system, where each stage follows the previous one in an orderly progression.

Moral Development

A process through which individuals evolve their understanding of what is right and wrong, often described through stages by psychologists.

Lawrence Kohlberg

An American psychologist best known for his theory of stages of moral development.