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  1. Jennifer E. Vitale

Published Online: 30 JAN 2010

DOI: 10.1002/9780470479216.corpsy0027

Corsini Encyclopedia of Psychology

Corsini Encyclopedia of Psychology

How to Cite

Vitale, J. E. 2010. Aggression. Corsini Encyclopedia of Psychology. 1–3.

Author Information

  1. Hampden-Sydney College, VA

Publication History

  1. Published Online: 30 JAN 2010


The most widely accepted definitions of aggression define it as behavior that is intended to injure another individual, physically or psychologically. Within this definition, a number of important subtypes are identified. First, a distinction is made between hostile or reactive aggression, which is aggression arising from feelings of anger or hostility, and instrumental aggression, which is aggression that arises in service of goal attainment (e.g., armed robbery).


  • violence;
  • social learning theory;
  • testosterone;
  • dominance