G-I transfer and coordination gains: Group learning in discretionary group tasks

群体判断的准确性往往超过群体成员个人判断的平均准确性。在该项目的第一阶段，我们成功地证明了这种过程增益不是如文献中目前假设的那样是由于协调增益（即，更准确的个人建议的权重更大），而是由于G-I转移：作为协作工作的结果，特别是在第一次小组互动期间，较弱的小组成员在其个人准确性方面经历了社会诱导的增加，这种增加随后也有利于小组绩效。这里提出的更新建议的第一组实验旨在将这种G-I转换推广到群体预测（一种具有特殊实际意义的判断类型）。此外，我们测试到什么程度的沟通是必要的，这种转移发生。此外，我们希望提供一个更详细的时间和内容方面的分析，这种转移，区分映射错误和度量错误的群体判断。在这个提议的第二组实验中，我们想系统地测试群体判断中的协调增益是否取决于判断任务中存在的群体偏见，也就是说，如果群体成员有一致低估或高估真实值的倾向，这些增益是否通常会发生。此外，我们要指定的过程，使集团在这些类型的任务表现出这样的协调收益。

The accuracy of group judgments often exceeds the accuracy of the average of the group members` individual judgments. In the first phase of this project, we successfully demonstrated that this process gain is not, as currently assumed in the literature, due to coordination gains (i.e., a stronger weighting of more accurate individual proposals), but rather due to G-I transfer: As a consequence of collaborative work, particularly during the first group interaction, weaker group members experience a socially induced increase in their individual accuracy, and this increase subsequently also benefits group performance. The first set of experiments of the renewal proposal submitted here aims at generalizing this G-I transfer to group forecasts (a judgment type with particular practical relevance). Furthermore, we test to what extent communication is necessary for this transfer to occur. In addition, we want to provide a more detailed temporal and content-wise analysis of this transfer by distinguishing between mapping errors and metric errors in group judgment. In the second set of experiments of this proposal, we want to systematically test whether coordination gains in group judgment depend on the presence of a population bias in the judgment task, that is, whether these gains typically occur if group members share a tendency to uniformly under- or overestimate the true values. In addition, we want to specify the processes that enable group to exhibit such coordination gains in these types of tasks.