The Cost of Collaboration

@article{Minson2012TheCO,
  title={The Cost of Collaboration},
  author={Julia A. Minson and Jennifer S. Mueller},
  journal={Psychological Science},
  year={2012},
  volume={23},
  pages={219 - 224}
}
Prior investigators have asserted that certain group characteristics cause group members to disregard outside information and that this behavior leads to diminished performance. We demonstrate that the very process of making a judgment collaboratively rather than individually also contributes to such myopic underweighting of external viewpoints. Dyad members exposed to numerical judgments made by peers gave significantly less weight to those judgments than did individuals working alone. This… 

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