Empirical studies have examined the effects of expertise and personality in group decision making. However, previous research has not examined these effects on influence and decision quality while using the group as the context for the individual. Consequently, two models were tested in which individual expertise affected influence on group decisions, with the relationship moderated by individual extraversion. In one model, this interaction is expected to be dependent on group extraversion, whereas in the other model the interaction is expected to be dependent upon group agreeableness. Three hundred and seventy six college undergraduates completed the Winter Survival decision-making task. The results were that expertise and extraversion were positively related to influence, but only in groups that achieved synergy. Moreover, the results showed that the effects of expertise and extraversion on influence were dependent upon group agreeableness, rather than group extraversion. Also, the interaction of influence and expertise predicted group decision quality. Results supported the importance of individual differences on group decision quality via influence. The results also support using a more nuanced approach to examine individual differences in groups rather than a group score such as a mean or standard deviation.
|Advisor:||Day, Eric A.|
|Commitee:||Buckley, Michael, Connelly, Shane, Snyder, Lori, Terry, Robert|
|School:||The University of Oklahoma|
|Department:||Department of Psychology|
|School Location:||United States -- Oklahoma|
|Source:||DAI-B 72/07, Dissertation Abstracts International|
|Subjects:||Behavioral psychology, Psychology, Personality psychology|
|Keywords:||Agreeableness, Decision making, Decision quality, Expertise, Extraversion, Groups, Influence|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be