Discussion and Perception of Information in Groups and Judge-Advisor Systems

Participants were given information about three different vacation destinations to read before discussing them in a group. Some information was given to all three group members before the discussion (shared) and some information was only given to one participant (unshared). Participants were randomly assigned to discuss the issue in either unstructured groups or Judge-Advisor Systems (JASs). A JAS is a group in which one member has the role of decisionmaker and the other two members act as advisors to the decisionmaker. Participants in JASs discussed more information and repeated a higher percentage of both their own unshared information and others’ unshared information than participants in unstructured groups. The hypothesis that others’ unshared information would be rated as more important and valid in JASs than groups was not supported.

[1]  Lyn M. Van Swol,et al.  The Effects of Confidence and Advisor Motives on Advice Utilization , 2009, Commun. Res..

[2]  J. Nezlek,et al.  Using Hierarchical Linear Modeling to Analyze Grouped Data , 2004 .

[3]  J. R. Larson,et al.  Informational Centrality and Member Participation During Group Decision Making , 2002 .

[4]  J. R. Larson,et al.  Information Pooling: When It Impacts Group Decision Making , 1998 .

[5]  Parks,et al.  Discussion and Decision: The Interrelationship between Initial Preference Distribution and Group Discussion Content. , 1999, Organizational behavior and human decision processes.

[6]  H. Guetzkow.  Unitizing and categorizing problems in coding qualitative data , 1950 .

[7]  G. Stasser,et al.  Hidden Profiles: A Brief History , 2003 .

[8]  D. Kashy,et al.  Conceptual and Methodological Issues in the Analysis of Data from Dyads and Groups , 2012 .

[9]  John B. Nezlek,et al.  Personality and Social Psychology Bulletin Nezlek / Multilevel Random Coefficient Analyses Multilevel Random Coefficient Analyses of Event-and Interval-contingent Data in Social and Personality Psychology Research , 2022 .

[10]  Janet A. Sniezek,et al.  Trust, Confidence, and Expertise in a Judge-Advisor System. , 2001, Organizational behavior and human decision processes.

[11]  J. R. Larson,et al.  Leadership Style and the Discussion of Shared and Unshared Information in Decision-Making Groups , 1998 .

[12]  Masanori Takezawa,et al.  Centrality in sociocognitive networks and social influence : An illustration in a group decision-making context , 1997 .

[13]  Adrian K. Rantilla,et al.  Confidence in aggregation of expert opinions. , 2000, Acta psychologica.

[14]  Charles E. Miller,et al.  Group decision making and normative versus informational influence: Effects of type of issue and assigned decision rule. , 1987 .

[15]  George R. Goethals,et al.  Similarity in the influence process: The belief-value distinction. , 1973 .

[16]  Garold Stasser,et al.  The sampling of critical, unshared information in decision-making groups: the role of an informed minority , 1998 .

[17]  A. Hollingshead.  The Rank-Order Effect in Group Decision Making , 1996 .

[18]  A. Hollingshead,et al.  From cooperative to motivated information sharing in groups: moving beyond the hidden profile paradigm , 2004 .

[19]  J. R. Larson,et al.  Diagnosing groups: charting the flow of information in medical decision-making teams. , 1996, Journal of personality and social psychology.

[20]  Lyn M. Van Swol,et al.  Tell Me Something I Don't Know , 2007, Commun. Res..

[21]  Richard Gonzalez,et al.  Interaction with Others Increases Decision Confidence but Not Decision Quality: Evidence against Information Collection Views of Interactive Decision Making , 1995 .

[22]  T. Postmes,et al.  Quality of decision making and group norms. , 2001, Journal of personality and social psychology.

[23]  Tobias Greitemeyer,et al.  Preference-consistent evaluation of information in the hidden profile paradigm: beyond group-level explanations for the dominance of shared information in group decisions. , 2003, Journal of personality and social psychology.

[24]  Norbert L. Kerr,et al.  Model testing, model fitting, and social decision schemes☆ , 1979 .

[25]  S. Moscovici,et al.  Biased information search in group decision making. , 2000, Journal of Personality and Social Psychology.

[26]  Janet A. Sniezek,et al.  The impact of information distribution, ownership; and discussion on group member judgment: The differential cue weighting model , 2003 .

[27]  Ross Hightower,et al.  Effects of Communication Mode and Prediscussion Information Distribution Characteristics on Information Exchange in Groups , 1996, Inf. Syst. Res..

[28]  Anthony S. Bryk,et al.  Hierarchical Linear Models: Applications and Data Analysis Methods , 1992 .

[29]  M. Konovsky.  The New Leadership: Managing Participation in Organizations , 1988 .

[30]  Lyn M Van Swol,et al.  Factors affecting the acceptance of expert advice. , 2005, The British journal of social psychology.

[31]  J. R. Larson,et al.  Diagnosing groups: the pooling, management, and impact of shared and unshared case information in team-based medical decision making. , 1998, Journal of personality and social psychology.

[32]  K. Propp.  Information Utilization in Small Group Decision Making , 1997 .

[33]  Kathleen L. Valley,et al.  Agents as information brokers: The effects of information disclosure on negotiated outcomes , 1992 .

[34]  Maria Augustinova,et al.  Differential access to information and anticipated group interaction: impact on individual reasoning. , 2005, Journal of personality and social psychology.

[35]  G. Stasser,et al.  Expert role assignment and information sampling during collective recall and decision making. , 1995, Journal of personality and social psychology.

[36]  Janet A. Sniezek,et al.  Information Sampling and Confidence Within Groups and Judge Advisor Systems , 2001, Commun. Res..

[37]  L. M. Swol,et al.  Differences Between Minority, Majority, and Unanimous Group Members in the Communication of Information , 2006 .

[38]  J. R. Larson,et al.  Discussion of shared and unshared information in decision-making groups , 1994 .

[39]  G. M. Wittenbaum,et al.  Mutual enhancement: Toward an understanding of the collective preference for shared information , 1999 .

[40]  Gwen M. Wittenbaum,et al.  The Bias Toward Discussing Shared Information , 2000, Commun. Res..

[41]  Arthur S. Elstein,et al.  Holding Shared Versus Unshared Information: Its Impact on Perceived Member Influence in Decision-Making Groups , 2002 .

[42]  J. A. Sniezek,et al.  Factors that May Affect the Difficulty of Uncovering Hidden Profiles , 2003 .

[43]  Gwen M. Wittenbaum,et al.  Information Sampling in Decision-Making Groups , 1998 .

[44]  Janet A. Sniezek,et al.  Cueing and Cognitive Conflict in Judge-Advisor Decision Making , 1995 .

[45]  J. R. Larson,et al.  Modeling the Entry of Shared and Unshared information into Group Discussion , 1997 .

[46]  V. Vroom,et al.  Leadership and decision-making , 1975 .

[47]  David Dryden Henningsen,et al.  Examining Social Influence in Information-Sharing Contexts , 2003 .

[48]  Lyn M. Van Swol,et al.  Perceived Importance of Information: The Effects of Mentioning Information, Shared Information Bias, Ownership Bias, Reiteration, and Confirmation Bias: , 2007 .

[49]  G. Stasser,et al.  Expert Roles and Information Exchange during Discussion: The Importance of Knowing Who Knows What , 1995 .

[50]  D. D. Henningsen,et al.  It's Good to Be Leader: The Influence of Randomly and Systematically Selected Leaders on Decision-Making Groups. , 2004 .

[51]  G. Stasser,et al.  Discovery of hidden profiles by decision-making groups: Solving a problem versus making a judgment. , 1992 .

[52]  S. Schulz-Hardt,et al.  The dissemination of critical, unshared information in decision-making groups: the effects of pre-discussion dissent , 2002 .

[53]  Laureen A. Maines.  The Effect of Forecast Redundancy on Judgments of a Consensus Forecast's Expected Accuracy , 1990 .

[54]  Hinsz.  Group Decision Making with Responses of a Quantitative Nature: The Theory of Social Decision Schemes for Quantities. , 1999, Organizational behavior and human decision processes.

[55]  Joshua Morrill,et al.  Social influence in groups: A comparative application of relational framing theory and the elaboration likelihood model of persuasion , 2003 .

[56]  R. Hastie,et al.  The common knowledge effect: Information sharing and group judgment. , 1993 .

[57]  David Dryden Henningsen,et al.  The Impact of Directive Leadership on Group Information Sampling, Decisions, and Perceptions of the Leader , 1999 .