Date of Award

2013

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Interdisciplinary Studies

First Advisor

Okpala, Dr. Comfort

Abstract

The purpose of this study was to determine (1) how group information sharing impact group decision effectiveness, (2) how group personality composition impact group information sharing, and (3) how group personality composition impact group decision effectiveness. The data collected was FIRO-B® scores on the expressed scale, group information sharing data as measured by the Process and Issues Questionnaire (PIQ), and group decision effectiveness data as measured by the PIQ. Correlation analysis were performed to analyze the group psychological characteristics (H2, H3, & H4,) based on an index created for each group where the data is represented by a range: H2) group average level scores on the psychological characteristic of expressed inclusion-group (eI-G) is positively related to group information sharing; H3) group average level scores on the psychological characteristic of expressed control-group (eI-G) is related to group information sharing; and H4) group average level scores on the psychological characteristic of expressed affection-group (eA-G) is positively related to group information sharing. A mediated regression analysis was used to analyze H5) group interpersonal psychological factors on group decision effectiveness and mediated by group information sharing. The results indicated, as hypothesized that the strongest predictor of group decision effectiveness was group information sharing. However, the results from this study did not find a significant link between group personality characteristics and group information sharing or group decision effectiveness. The present study provides support to previous research that group information sharing has a positive impact on group decision effectiveness.

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