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Separating the confident from the correct: Leveraging member knowledge in groups to improve decision making and performance

  • Bonner, Bryan L.
  • Bolinger, Alexander R.
Registered author(s):

    Groups often struggle to distinguish expert members from others who stand out for various reasons but may not be particularly knowledgeable (Littlepage & Mueller, 1997). We examined an intervention designed to improve group decision making and performance through instructing group members to search for information they already possessed that was relevant to a problem. Participants estimated values and expressed their confidence in their estimates individually and then a second time either individually or in a group. This was done with or without the intervention. Results indicated that: (1) groups were more confident than, and out-performed, individuals, (2) group decision making was best captured by models predicting more influence for more accurate members when the intervention was used and more influence for more confident members in its absence, and (3) groups that received the intervention out-performed groups that did not.

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    File URL: http://www.sciencedirect.com/science/article/pii/S0749597813000745
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    Article provided by Elsevier in its journal Organizational Behavior and Human Decision Processes.

    Volume (Year): 122 (2013)
    Issue (Month): 2 ()
    Pages: 214-221

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    Handle: RePEc:eee:jobhdp:v:122:y:2013:i:2:p:214-221
    Contact details of provider: Web page: http://www.elsevier.com/locate/obhdp

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    1. Asare, Stephen K. & Wright, Arnold, 1995. "Normative and Substantive Expertise in Multiple Hypotheses Evaluation," Organizational Behavior and Human Decision Processes, Elsevier, vol. 64(2), pages 171-184, November.
    2. Irving Lorge & Herbert Solomon, 1955. "Two models of group behavior in the solution of eureka-type problems," Psychometrika, Springer, vol. 20(2), pages 139-148, June.
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    6. Hinsz, Verlin B., 1999. "Group Decision Making with Responses of a Quantitative Nature: The Theory of Social Decision Schemes for Quantities, , , , , , , , , ," Organizational Behavior and Human Decision Processes, Elsevier, vol. 80(1), pages 28-49, October.
    7. John P. Lightle & John H. Kagel & Hal R. Arkes, 2009. "Information Exchange in Group Decision Making: The Hidden Profile Problem Reconsidered," Management Science, INFORMS, vol. 55(4), pages 568-581, April.
    8. Sniezek, Janet A., 1989. "An examination of group process in judgmental forecasting," International Journal of Forecasting, Elsevier, vol. 5(2), pages 171-178.
    9. Henry, Rebecca A., 1995. "Improving Group Judgment Accuracy: Information Sharing and Determining the Best Member," Organizational Behavior and Human Decision Processes, Elsevier, vol. 62(2), pages 190-197, May.
    10. Laughlin, Patrick R. & Bonner, Bryan L. & Miner, Andrew G. & Carnevale, Peter J., 1999. "Frames of Reference in Quantity Estimations by Groups and Individuals," Organizational Behavior and Human Decision Processes, Elsevier, vol. 80(2), pages 103-117, November.
    11. Littlepage, Glenn & Robison, William & Reddington, Kelly, 1997. "Effects of Task Experience and Group Experience on Group Performance, Member Ability, and Recognition of Expertise," Organizational Behavior and Human Decision Processes, Elsevier, vol. 69(2), pages 133-147, February.
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    15. Bonner, Bryan L. & Sillito, Sheli D. & Baumann, Michael R., 2007. "Collective estimation: Accuracy, expertise, and extroversion as sources of intra-group influence," Organizational Behavior and Human Decision Processes, Elsevier, vol. 103(1), pages 121-133, May.
    16. Bonner, Bryan L. & Baumann, Michael R. & Dalal, Reeshad S., 2002. "The effects of member expertise on group decision-making and performance," Organizational Behavior and Human Decision Processes, Elsevier, vol. 88(2), pages 719-736, July.
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