Social Psychology Key Figures. 1  Allport (1920) â Social Facilitation. 2  Bandura (1963) Social Learning Theory. 3  Festinger (1950) â Cognitive Dissonance. 4  Tajfel (1971) â Social Identity Theory. 5  Weiner (1986) â Attribution theory. 6  Milgram (1963) â Shock Experiment. 7  Haney, Banks, Zimbardo (1973) â Prison Study.
Founded in 2012 by two Stanford students, Snap is the Los Angeles-based technology and social media company behind messaging app Snapchat.
John Spiegel (C), father of Snapchat founder Evan Spiegel, reacts as Snap Inc. shares open for trading on the floor of the New York Stock Exchange, March 2, 2017 in New York City. The opening price of $24 puts the company's market capitalization at about $33 billion, about the size of Marriot and Target.