Although scholars have examined how individuals deal with information that is unavailable on decision-making tasks, little research has explored how groups deal with missing information. The present study proposes two ways groups can address information that is unavailable: by employing a diminished information set or by inferring the value of missing information. Both of these approaches are tested using an information sharing task. Groups are compared with information unavailable to any member, available but unshared among group members (i.e., hidden profile), and available and shared among all group members. Evidence indicates that group members may utilize both strategies to deal with missing information.
Chernyshenko, O.S.
,
Miner, A.G.
,
Baumann, M.R.
, &
Sneizek, J.A.
(2003).
The impact of information distribution, ownership, and discussion on group member judgment: The differential cue weighting model
. Organizational Behavior and Human Decision Processes, 91,
12-25
.
2.
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
.
3.
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
.
4.
Dennis, A.R.
(1996).
Information exchange and use in small group decision-making
. Small Group Research, 27,
532-550
.
5.
Dennis, A.R.
,
Hilmer, K.M.
, &
Taylor, N.J.
(1998).
Information exchange and use in GSS and verbal group decision making: Effects of minority influence. Journal of Management InformationSystems, 14,
61-88
.
6.
Greitemeyer, T.
, &
Schulz-Hardt, S.
(2003).
Preference-consistent evaluation of information in the hidden profile paradigm: Beyond group-level explanations for the dominance of shared information in group decisions
. Journal of Personality and Social Psychology, 84,
322-339
.
7.
Henningsen, D.D.
, &
Henningsen, M.L.M.
(2003).
Examining social influence in information-sharing contexts
. Small Group Research, 34,
391-413
.
8.
Henningsen, D.D.
, &
Henningsen, M.L.M.
(2004).
Examining how individual difference variables influence information sharing in decision-making groups
. Human Communication Research, 30,
540-555
.
9.
Henningsen, D.D.
,
Henningsen, M.L.M.
,
Jacobsen, L.
, &
Borton, I.
(2004).
It's good to be leader: The influence of randomly and systematically selected leaders on decision-making groups. Group Dynamics: Theory
, Research and Practice, 8,
62-76
.
10.
Henningsen, M.L.M.
,
Henningsen, D.D.
,
Cruz, M.G.
, &
Morrill, J.
(2003).
Normative influence in decision-making groups: Evaluating information in discussion
. Communication Monographs , 70,
175-196
.
11.
Jagacinski, C.M.
(1995).
Distinguishing adding and averaging models in personnel selection task: When missing information matters
. Organizational Behavior and Human Decision Processes, 61,
1-15
.
12.
Johnson, R.D.
(1987).
Making judgments when information is missing: Inferences, biases, and framing effects
. Acta Psychologica , 66,
69-82
.
13.
Keppel, G.
(1991). Design and analysis: A researcher's handbook (3rd ed.).
Englewood Cliffs, NJ: Prentice Hall
.
14.
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
.
15.
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
.
16.
Mennecke, B.E.
, &
Valacich, J.S.
(1998).
Information is what you make of it: The influence of group history and computer support on information sharing, decision quality, and member perceptions. Journal of Management InformationSystems, 15,
173-199
.
17.
Savadori, L.
,
Van Swol, L.
, &
Sneizek, J.A.
(2001).
Sampling and confidence within groups and judge-advisor systems
. Communication Research, 28,
737-771
.
18.
Stasser, G.
(1988).
Computer simulation as a research tool: The DISCUSS model of group decision making
. Journal of Experimental Social Psychology, 24,
393-422
.
19.
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
.
20.
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
.
21.
Van Swol, L.M.
,
Savadori, L.
, &
Sneizek, J.A.
(2003).
Factors that may affect the difficulty of uncovering hidden profiles
. Group Processes & Intergroup Relations,6,
285-304
.
22.
White, C.M.
, &
Koehler, D.J.
(2004).
Missing information in multiple-cue probability learning
. Memory & Cognition, 32,
1007-1018
.
23.
Winquist, J.R.
, &
Larson, J.R., Jr.
(1998).
Information pooling: When it impacts group decision making
. Journal of Personality and Social Psychology , 74,
371-377
.
24.
Wittenbaum, G.M.
,
Hollingshead, A.B.
, &
Botero, I.C.
(2004).
From cooperative to motivated information sharing in groups: Moving beyond the hidden profile paradigm
. Communication Monographs, 71,
286-310
.
