Research on hidden profiles has found that groups tend to make decisions reflecting the information shared among group members prior to discussion. However, shared information is confounded with individual prediscussion preferences in hidden profile situations. In this article, the authors manipulate information distribution to examine hidden, ambiguous (i.e., prediscussion preferences favor no alternative), and clear (i.e., prediscussion preferences support the decision alternative favored by the total information) profiles. They examine the influence of profile type on group decisions, use of shared and unshared information, and perceptions of normative and informational influence. Results indicate that groups make superior decisions and rely more on unshared information in clear and ambiguous profiles than in hidden profiles. In addition, perceived social influence is most prevalent in ambiguous profiles.
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References
1.
Asch, S. E. (1955). Opinions and social pressures. Scientific American, 193, 31-35.
2.
Boster, F. J., & Mayer, M. (1984). Choice shifts: Argument qualities or social comparisons. Communication Yearbook, 8, 393-409.
3.
Brodbeck, F. C., Kerschreiter, R., Mojzisch, A.Frey, D., & Schultz-Hardt, S. (2002). The dissemination of critical, unshared information in decision-making groups: The effects of prediscussion dissent. European Journal of Social Psychology, 32, 35-56.
4.
Cruz, M. G., Boster, F. J., & Rodriguez, J. I. (1997). The impact of group size and proportion of shared information on the exchange and integration of information in groups. Communication Research, 24(3), 291-313.
5.
Cruz, M. G., Henningsen, D. D., & Smith, B. A. (1999). The impact of directive leadership on group information sampling, decisions, and perceptions of the leader. Communication Research, 26(3), 349-369.
6.
Cruz, M. G., Henningsen, D. D., & Williams, M. L. M. (2000). The presence of norms in the absence of groups? The impact of normative influence under hidden-profile conditions. Human Communication Research, 26(1), 104-124.
7.
Dennis, A. R. (1996). Information exchange and use in small group decision making. Small Group Research, 27(4), 532-550.
8.
Deutsch, M., & Gerard, H. B. (1955). A study of normative and informational social influence upon social judgment. Journal of Abnormal and Social Psychology, 51, 629-636.
9.
Gigone, D., & Hastie, R. (1993). The common knowledge effect: Information sharing and group judgment. Journal of Personality and Social Psychology, 65(5), 959-974.
10.
Gigone, D., & Hastie, R. (1997). The impact of information on small group choice. Journal of Personality and Social Psychology, 72(1), 132-140.
11.
Gruenfeld, D. H., Mannix, E. A., Williams, K. Y., & Neale, M. A. (1996). Group composition and decision making: How member familiarity and information distribution affect process and performance. Organizational Behavior and Human Decision Processes, 67(1), 1-15.
12.
Henningsen, M. L. M., Henningsen, D. D., Cruz, M. G., & Morrill, J. (2002, November). Normative influence in decision-making groups: Evaluating the perceptual experience of pressure versus influence statements. Paper presented at the New Orleans Convention of the National Communication Association.
13.
Hollingshead, A. B. (1996a). Information suppression and status persistence in group decision making: The effects of communication media. Human Communication Research, 23(2), 193-219.
14.
Hollingshead, A. B. (1996b). The rank-order effect in group decision making. Organizational Behavior and Human Decision Processes, 68(3), 181-193.
15.
Kameda, T., Ohtsubo, Y., & Takezawa, M. (1997). Centrality in sociocognitive networks and social influence: An illustration in a group decision-making context. Journal of Personality and Social Psychology, 73, 296-309.
16.
Kaplan, M. F., & Miller, C. E. (1987). Group decision making and normative versus informational influence: Effects of type of issue and assigned decision rule. Journal of Personality and Social Psychology, 53, 306-313.
17.
Kelly, J. R., Jackson, J. W., & Hutson-Comeaux, S. L. (1997). The effects of time pressure and task differences on influence modes and accuracy in decision-making groups. Personality and Social Psychology Bulletin, 23(1), 10-22.
18.
Kelly, J. R., & Karau, S. J. (1999). Group decision making: The effects of initial preferences and time pressure. Personality and Social Psychology Bulletin, 25(11), 1342-1354.
19.
Larson, J. R., Jr., Christensen, C., Abbott, A. S., & Franz, T. M. (1996). Diagnosing groups: Charting the flow of information in medical decision-making teams. Journal of Personality and Social Psychology, 71, 315-330.
20.
Larson, J. R., Jr., Christensen, C., Franz, T. M., & Abbott, A. S. (1998). Diagnosing groups: Management and impact of shared and unshared case information in team-based medical decision making. Journal of Personality and Social Psychology, 75(1), 93-108.
21.
Larson, J. R., Jr., Foster-Fishman, P. G., & Granz, T. M. (1998). Leadership style and the discussion of shared and unshared information in decision-making groups. Personality and Social Psychology Bulletin, 24(5), 482-495.
22.
Larson, J. R., Jr., Foster-Fishman, P. G., & Keys, C. B. (1994). Discussion of shared and unshared information in decision-making groups. Journal of Personality and Social Psychology, 67(3), 446-461.
23.
Lavery, T. A., Franz, T. M., Winquist, J. R., & Larson, J. R., Jr. (1999). The role of information exchange in predicting group accuracy on a multiple judgment task. Basic and Applied Social Psychology, 21(4), 281-289.
24.
Mayer, M. E., Sonoda, K. T., & Gudykunst, W. B. (1997). The effect of time pressure and type of information on decision quality. Southern Communication Journal, 62, 280-292.
25.
Mennecke, B. E. (1997). 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. International Journal of Human-Computer Studies, 47, 387-405.
26.
Postmes, T., Spears, R., & Cihangir, S. (2001). Quality of decision making and group norms. Journal of Personality and Social Psychology, 80(6), 918-930.
27.
Propp, K. M. (1997). Information utilization in small group decision making: A study of the evaluative interaction model. Small Group Research, 28(3), 424-453.
28.
Savadori, L., Van Swol, L. M., & Sniezek, J. A. (2001). Information sampling and confidence within groups and judge advisor systems. Communication Research, 28(6), 737-771.
29.
Schittekatte, M. (1996). Facilitating information exchange in small decision-making groups. European Journal of Social Psychology, 26, 537-556.
30.
Schittekatte, M., & Van Hiel, A. (1996). Effects of partially shared information and awareness of unshared information on information sampling. Small Group Research, 27(3), 431-449.
31.
Shaw, M. E., & Penrod, W. T., Jr. (1962). Does more information available to a group always improve group performance? Sociometry, 25, 377-390.
32.
Stasser, G. (1988). Computer simulation as a research tool: The DISCUSS model of group decision making. Journal of Experimental Social Psychology, 24, 393-422.
33.
Stasser, G., & Stewart, D. D. (1992). Discovery of hidden profiles by decision-making groups: Solving a problem versus making a judgment. Journal of Personality and Social Psychology, 63(3), 426-434.
34.
Stasser, G., Stewart, D. D., & Wittenbaum, G. M. (1995). Expert roles and information exchange during discussion: The importance of knowing who know what. Journal of Experimental Social Psychology, 31, 244-265.
35.
Stasser, G., Taylor, L. A., & Hanna, C. (1989). Information sampling in structured and unstructured discussions of three- and six-person groups. Journal of Personality and Social Psychology, 57(1), 67-78.
36.
Stasser, G., & Titus, W. (1985). Pooling of unshared information in group decision making: Biased information sampling during discussion. Journal of Personality and Social Psychology, 48(6), 1467-1478.
37.
Stasser, G., & Titus, W. (1987). Effects of information load and percentage of shared information on the dissemination of unshared information during group discussion. Journal of Personality and Social Psychology, 53(1), 81-93.
38.
Stasser, G., Vaughn, S. I., & Stewart, D. D. (2000). Pooling unshared information: The benefits of knowing how access to information is distributed among group members. Organizational Behavior and Human Decision Processes, 82(1), 102-116.
39.
Stewart, D. D. (1998). Stereotypes, negativity bias, and the discussion of unshared information in decision-making groups. Small Group Research, 29(6), 643-669.
40.
Stewart, D. D., Billings, R. S., & Stasser, G. (1998). Accountability and the discussion of unshared, critical information in decision-making groups. Group Dynamics: Theory, Research, and Practice, 2(1), 18-23.
41.
Stewart, D. D., & Stasser, G. (1995). Expert role assignment and information sampling during collective recall and decision making. Journal of Personality and Social Psychology, 69(4), 619-628.
42.
Stewart, D. D., & Stasser, G. (1998). The sampling of critical, unshared information in decision-making groups: The role of an informed minority. European Journal of Social Psychology, 28, 95-113.
43.
Van Hiel, A., & Schittekatte, M. (1998). Information exchange in context: Effects of gender composition of group, accountability, and intergroup perception on group decision making. Journal of Applied Social Psychology, 28(22), 2049-2067.
44.
Winquist, J. R., & Larson, J. R., Jr. (1998). Information pooling: When it impacts group decision making. Journal of Personality and Social Psychology, 74(2), 371-377.
45.
Wittenbaum, G. M. (1998). Information sampling in decision-making groups: The impact of members' task-relevant status. Small Group Research, 29(1), 57-84.
46.
Wittenbaum, G. M. (2000). The bias toward discussing shared information: Why are high-status group members immune? Communication Research, 27(3), 379-401.
47.
Wittenbaum, G. M., Hubbell, A. P., & Zuckerman, C. (1999). Mutual enhancement: Toward an understanding of the collective preference for shared information. Journal of Personality and Social Psychology, 77(5), 967-978.
48.
Wittenbaum, G. M., & Stasser, G. (1998). The reevaluation of information during group discussion. Group Processes & Intergroup Relations, 1(1), 21-34.
49.
Wittenbaum, G. M., Stasser, G., & Merry, C. J. (1996). Tacit coordination in anticipation of small group task completion. Journal of Experimental Social Psychology, 32, 129-152.
