The group polarization phenomenon.

  title={The group polarization phenomenon.},
  author={David Gershom Myers and Helmut Lamm},
  journal={Psychological Bulletin},
Experiments exploring the effects of group discussion on attitudes, jury decisions, ethical decisions, judgments, person perceptions, negotiations, and risk taking (other than the choice-dilemmas task) are generally consistent with a "group polarization" hypothesis, derived from the risky-shift literature. Recent attempts to explain the phenomenon fall mostly into one of three theoretical approaches: (a) group decision rules, especially majority rule (which is contradicted by available data… Expand

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