Signal-detection analysis of group decision making
Signal-detection analysis of group decision making
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DOI：
10.1037//0033-295x.108.1.183
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发表时间：
2001-01-01
影响因子：
5.4
通讯作者：
West, R
中科院分区：
文献类型：
--
作者：
Sorkin, RD;Hays, CJ;West, R
一群人如何有效地做出是或否的决定？回答这个问题。我们使用信号检测理论来模拟视觉检测任务中人类参与者的行为。检测模型指定的性能如何取决于组的大小，成员的能力，成员的判断之间的相关性，成员之间的相互作用的约束，以及组的决策规则。该模型还允许性能效率的规格，这是一个组的性能匹配统计最佳组的密切程度的度量。我们小组的表现与理论预测一致，但效率随着小组规模的增加而下降。这一结果可归因于成员对各自任务的努力减少，而不是在成员的判断中组合信息的效率低下。
How effectively can groups of people make yes-or-no decisions? To answer this question. we used signal-detection theory to model the behavior of groups of human participants in a visual detection task. The detection model specifies how performance depends on the group's size, the competence of the members, the correlation among members' judgments, the constraints on member interaction, and the group's decision rule. The model also allows specification of performance efficiency, which is a measure of how closely a group's performance matches the statistically optimal group. The performance of our groups was consistent with the theoretical predictions, but efficiency decreased as group size increased. This result was attributable to a decrease in the effort that members gave to their individual tasks rather than to an inefficiency in combining the information in the members' judgments.