Despite an extensive use of the groupthink model in various areas of social science, there are few empirical studies testing groupthink and many criticisms of it. In order to better understand the concept of groupthink, and to set a foundation for future research, this paper summarizes previous empirical studies on group-think and indicates problems (e.g., limited inclusion of variables and an inappropriate usage of measurement modes) that exist throughout those studies. Recommendations for future research are then provided.
