Leon Festinger
American social psychologist
Leon Festinger was an American social psychologist who originated the theory of cognitive dissonance and social comparison theory. Wikipedia
Born: May 8, 1919, New York, NY
Died: February 11, 1989 (age 69 years), New York, NY
Known for: Cognitive dissonance; Effort justification; Social comparison theory
Education: The University of Iowa (1942) and The City College of New York (1939)
Parents: Alex Festinger and Sara Solomon Festinger
Doctoral advisor: Kurt Lewin
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