A descriptive investigation of the possible communication‐based reasons for effective and ineffective group decision making

The present study sought to compare the nature and content of interaction within a number of “effective” and “ineffective” decision‐making groups in an effort to identify consistent differences which might account for the differences in the quality of their group decisions. The goal of the investigation was to generate data which will help us better understand the communication‐based reasons for “effective” and “ineffective” group decision making. Using basically a qualitative approach, six “effective” groups and five “ineffective” groups were compared. The study found that the discussions of those two sets of groups can be distinguished on the basis of at least four communication‐related characteristics: (1) The manner in which the groups examined opinions and assumptions advanced by group members; (2) The manner in which the groups evaluated alternative choices; (3) The nature of the premises which served as the basis for the groups’ decisions; and (4) The nature of influence exerted by the most influential members of the groups. These four differences are discussed in terms of specific empirically‐testable propositions regarding the relationship between group interaction and quality of group decision making.