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Korean Journal of Social and Personality Psychology

ISSN : 1229-0653

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Vol.28 No.2

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Bias in Information Processing and Decision Making: A Study of Group Decision Making by Hidden Profile Paradigm

Korean Journal of Social and Personality Psychology / Korean Journal of Social and Personality Psychology, (P)1229-0653;
2014, v.28 no.2, pp.177-199
https://doi.org/10.21193/kjspp.2014.28.2.010

(2014). Bias in Information Processing and Decision Making: A Study of Group Decision Making by Hidden Profile Paradigm. Korean Journal of Social and Personality Psychology, 28(2), 177-199, https://doi.org/10.21193/kjspp.2014.28.2.010

Abstract

Although groups have potentials of superior decision making than individuals on the basis of diverse sources and therefore a more complete information base, they do not always make better decisions than individuals. The present study examined influence of biased information processing on decision making. We regarded the process of decision making of individuals and of groups as a single continuous process. It was assumed that at each stage of decision making, the biased information processing would eventually impact on the quality of decision negatively. As factors which affect the quality of decision making, are included such as bias in information sampling, evaluating, integrating up to choosing the correct option, and bias in information exchanging and integrating in group decision making. Result suggested that individuals focus on a small number of subjective important informations for decision rather than use all given informations; moreover intuitive information processing enables better decision than systematic processing. Furthermore, not all informations are exchanged equivalent in group discussion, instead, shared informations are mentioned more frequently and deemed more important than unshared. It showed also confirmatory bias for the information which is consistent with the initial decision. Based on the result of the above study, some ways to improve group decision making are discussed.

keywords
Group Decision Making, biased information processing, hidden profile, information sampling, confirmaion bias, 집단의 의사결정, 정보처리의 편파, 숨겨진 속성, 정보표집, 확증편파

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