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Group Processes & Intergroup Relations, Vol. 6, No. 3, 285-304 (2003)
DOI: 10.1177/13684302030063005
© 2003 SAGE Publications

Factors that May Affect the Difficulty of Uncovering Hidden Profiles

Lyn M. Van Swol

Northwestern University, s-van2{at}northwestern.edu

Lucia Savadori

University of Trento

Janet A. Sniezek

University of Illinois at Urbana-Champaign

Three experiments examined three factors that may impede the discovery of hidden profiles: commitment to initial decision, reiteration effect, and ownership bias. Experiment 1 examined whether groups in which members are not asked to make an initial decision before group discussion are more likely to uncover hidden profiles than groups in which members are asked to make an initial decision. Experiment 2 examined this commitment to an initial decision and also the repetition of information for individuals. Experiment 3 explored the reiteration effect in groups and examined whether information that is usually repeated more in groups is viewed as more truthful. Experiments 1 and 2 found no support for the commitment to initial decision hypothesis for uncovering hidden profiles. Experiment 2 found that repetition of `common'information significantly reduced individuals' ability to uncover hidden profiles. Experiment 3 found that information individuals owned (both common and unique) before discussion was rated as more valid than other information. Experiment 3 did not find that common information, which is generally repeated more, was rated as more valid than unique information. Limitations of the current studies and suggestions for future research are discussed.

Key Words: common information bias • hidden profile • information sampling • reiteration effect


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