Lam S S, Schaubroeck J
School of Business, University of Hong Kong, Hong Kong.
J Appl Psychol. 2000 Aug;85(4):565-73. doi: 10.1037/0021-9010.85.4.565.
This study compared a group decision support system (GDSS) with face-to-face (FTF) group discussion on characteristics of information exchange and decision quality. Participants given conflicting information tended to share more of their unique data and engaged in more critical argumentation when using the GDSS than when meeting FTF. Conversely, when information was consistent among members, there were no such differences between FTF and GDSS groups. The GDSS groups significantly outperformed the FTF groups in agreeing on the superior hidden profile candidate, especially when there was a lack of prediscussion consensus. Individual-level analyses revealed that members of GDSS groups that did not have a prediscussion consensus tended to experience stronger preference shifts toward the group's consensus decision.
本研究比较了群体决策支持系统（GDSS）与面对面（FTF）小组讨论在信息交流特征和决策质量方面的差异。当面对相互冲突的信息时，与面对面交流相比，使用GDSS的参与者倾向于分享更多他们独有的数据，并进行更多批判性的论证。相反，当成员之间的信息一致时，FTF小组和GDSS小组之间没有此类差异。在就更优的隐藏配置文件候选方案达成一致方面，GDSS小组的表现显著优于FTF小组，尤其是在缺乏讨论前共识的情况下。个体层面的分析表明，在讨论前没有达成共识的GDSS小组的成员，往往会更强烈地倾向于转向群体的共识决策。
