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Proposed social psychology as a branch of general psychology in 1868

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wrote the acclaimed 1965 textbook social psychology, which played a central role in training a generation of social psychologists

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founder of experimental social psychology

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- Sometimes known as the father of social psychology
- Regarded by many as the founder of modern social psychology

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defined as the process involved in leading others including organizing, directing, coordinating and motivating their efforts towards achieving the same goals. (APA)

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Allport defines prejudice as a hostile attitude or feeling toward a person solely because he or she belongs to a group to which one has assigned objectionable qualities (Addison-Wesley, 1954)

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Based on Baron and Richardson (1994), aggression is defined as behavior that is intended to harm another individual who does not wish to be harmed

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defined as yielding to group pressure (Crutchfield, 1955)

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basic emotion theory (Keltner, Sauter, Tracy, & Cowen, 2019)

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Plato referred to the idea of the "crowd mind" such as social loafing and social facilitations were introduced into the late 1800s.

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earliest social psychology experiments on group behavior (1900)

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Cherry Kendra (2022)

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the study of people's behaviors, feelings and thoughts that are determined by the implied, imagined and actual presence of other persons.