Leon Festinger (8 May 1919 -11 February 1989) was an American social psychologist, perhaps best known for cognitive dissonance and social comparison theory.
Henry William Riecken (November 11, 1917 - December 27, 2012) was an American psychologist.
Stanley Schachter (April 15, 1922 - June 7, 1997) was an American social psychologist, who is perhaps best known for his development of the two factor theory of emotion in 1962 along with Jerome E.
Singer.
Science and social psychologist,
textbook author.