Which theorist is known for using moral dilemmas to assess moral reasoning stages?

Theorist Kohlberg is recognized for his work in moral development, particularly for devising a framework that identifies stages of moral reasoning through the use of moral dilemmas. His most famous work is centered around how individuals progress through specific stages of moral reasoning, which he categorizes into a three-level model: pre-conventional, conventional, and post-conventional. This model illustrates how people's moral reasoning evolves as they grow and encounter different ethical challenges.

Kohlberg utilized moral dilemmas, such as the well-known "Heinz dilemma," to gauge the reasoning behind people's decisions when faced with ethical conflicts. His insights highlighted the cognitive aspects behind moral choices, distinguishing how individuals justify their beliefs and actions based on their stage of development. This foundational work in moral psychology has had a significant impact on research in education, psychology, and philosophy, providing a structured understanding of moral reasoning that continues to influence contemporary discussions around ethics and morality.