Bias in judgment: Comparing individuals and groups

Kerr, Norbert L.; MacCoun, Robert J.; Kramer, Geoffrey P. (1996) “Bias in judgment: Comparing individuals and groups." Psychological Review, Vol 103(4), Oct 1996, 687-719. http://psycnet.apa.org/?fa=main.doiLanding&doi=10.1037/0033-295X.103.4.687. uci.edu 提供的 [PDF]

==original abstract==

The relative susceptibility of individuals and groups to systematic judgmental biases is considered. An overview of the relevant empirical literature reveals no clear or general pattern. However, a theoretical analysis employing J. H. Davis’s (1973) social decision scheme (SDS) model reveals that the relative magnitude of individual and group bias depends upon several factors, including group size, initial individual judgment, the magnitude of bias among individuals, the type of bias, and most of all, the group-judgment process. It is concluded that there can be no simple answer to the question, “Which are more biased, individuals or groups?," but the SDS model offers a framework for specifying some of the conditions under which individuals are both more and less biased than groups.

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