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Morality- Piaget. Jean Piaget was a Swiss Psychologist who studied childhood development and how children develop morality. Through studying children and how they related to the rules of games that they played where he lived, he developed the idea that children move through two stages of morality. Piaget calls the first stage heteronymous morality.
Professional Psychology: Debating Chamber Â· Psychology Journals Â· Psychologists. Jean Piaget, (August 9, 1896âSeptember 16, 1980) was a Swiss psychologist, famous for his work with children and his theory of cognitive development. His theory of cognitive development and epistemological view are together called Genetic Epistemology..