@article{oai:ksu.repo.nii.ac.jp:00002174, author = {水谷, 覚 and MIZUTANI, Satoru and 後藤, 文彦 and GOTO, Fumihiko}, journal = {京都マネジメント・レビュー}, month = {Jun}, note = {The purpose of this experiment is to present a regression model which describes the relationship between group rationality and group member traits, especially group member characteristics. There are many problems to be solved in the world, but our rationality to challenge them is limited. If problem-solving or decision-making within groups is an important part of our lives, and if group rationality (which determines the problem-solving or decision-making level) depends on group member traits, then it is essential to estimate the relationship between group rationality and group member traits.  Although a large number of studies have been made in this field, there has been only limited success. However, this experiment shows that member traits have a statistically strong relation to group decision-making or group rationality.  This study analyzed the data from 587 university students in 2, 3, 4 or 5 person groups that made 175 groups in total. Rationality of a group member and a group was measured by a questionnaire, and characteristics of each group member were assessed by the Maudsley Personality Inventory (MPI), Japanese edition.  The preceding model developed by GOTO (2002) succeeded in structuring the relationship between group rationality and member traits namely, member rationality and member characteristics. Unfortunately due to poor R2, the model was not useful for prediction.  In this experiment, we succeeded in raising the accuracy of the model by making an effort to find dummy variables. The new regression model developed here could offer useful information for improvement in group rationality and in effective personnel management. In addition, this model proved that MPI was useful. Furthermore, by using MPI and dummy variables, we can expect to raise group rationality.}, pages = {83--92}, title = {メンバーの個人的特性によるグループの合理性についての回帰モデル : 合理性が制限された状況における,問題解決や説得の方法を用いたグループの意思決定}, volume = {7}, year = {2005} }