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Communication Research, Vol. 34, No. 3, 297-312 (2007)
DOI: 10.1177/0093650207300430
© 2007 SAGE Publications

Tell Me Something I Don't Know

Decision Makers' Preference for Advisors With Unshared Information

Lyn M. Van Swol

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

Cara L. Ludutsky

Northwestern University

This article examined strategic requests for information in a group structured as a judge advisor system (JAS) with one group member designated as the decision maker and the other two members as advisors. The decision maker could solicit advice from the two advisors. One advisor's advice contained only information shared in common with the decision maker, and the other's advice contained half unshared information. The authors proposed an alternative to research on information sampling and mutual enhancement and predicted that the decision maker would prefer information from the advisor with more unshared information. The decision maker solicited more information from the advisor with more unshared information and rated this advisor's information as more important and influential than the advisor with only shared information.

Key Words: common information bias • information sampling bias • unshared information • shared information • group decision making • judge advisor system • advice seeking


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