Affiliation:
1. University of Freiburg, Germany
2. Swiss Federal Institute of Technology Zurich, Switzerland
Abstract
Formal probability models of group decision making imply that the normative influence of large opinion factions tends to have a negative impact on the quality of decisions in difficult tasks and a positive impact in easy tasks that many people solve correctly. Consequently, an informative intervention (INFO) was developed that advises group members to evaluate task difficulty and to react correspondingly to normative majority or plurality influence. In the study, groups of 5 persons had to solve 2 types of intellective tasks: knowledge questions and logic problems. Compared to control groups, group members in the INFO condition were less overconfident, and achieved more correct group decisions.
Reference84 articles.
1. Judgment Accuracy and Outcomes in Negotiation: A Causal Modeling Analysis of Decision-Aiding Effects
2. Studies of independence and conformity: I. A minority of one against a unanimous majority.
3. AN INQUIRY OF THE NOMINAL GROUP PROCESS.
4. Cohen, J.
(1988). Statistical power analysis for
the behavioral sciences. Hillsdale, NJ: Erlbaum.
5. Crott, H. W.
Werner, J.
Hoffmann, C.
(1996). A
probabilistic model of opinion change considering distance
between alternatives: An application to mock jury data.
In. E. H. Witte & J. H. Davis (Eds.), Understanding
group behavior. Consensual action by small groups(Vol. 1,
pp. 15-33). Mahwah, NJ: Erlbaum .
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