Using group support systems to discover hidden profiles: an examination of the influence of group size and meeting structures on information sharing and decision quality

This paper reports on an experimental study of information sharing for groups using a group support system (GSS). A group member's success or failure in sharing unique information can have important impacts on meeting outcomes. This research builds on previous work which has examined various factors that impact information-sharing performance. To examine these issues, groups processed a hidden profile task, i.e. a task with an asymmetrical distribution of information. In addition, group size (groups of four and seven) and the level of structure (structured or unstructured agenda) were manipulated. Results show that group size had no effect on information sharing. However, groups using the structured agenda shared more initially-shared information and initially-unshared information. Although no relationship was found between information-sharing performance and decision quality, a curvilinear (U-shaped) relationship between information sharing and satisfaction was observed. These results show that, for hidden-profile tasks, a critical performance level must be reached before performance is positively related to satisfaction. The paper concludes with a discussion of the findings and the implications for future research and use.

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