1932 Piaget
1896-1980 (Swiss)
Psychology, Sociology and Philosophy of Science at the University of Neuchatel.
Emphasized the cognitive over the emotional
developmental process is linked to moral development
Piaget, J. (1932). The language and thought of the child, 1926; Judgment and reasoning in the child, 1928; The child's conception of the world, 1929; The child's conception of physical causality,
Piaget, J. (1932). The moral judgment of the child. London: Kegan Paul, Trench, Trubner
Piaget, J. (1967). Six psychological studies. New York: Random House