A comprehensive empirical investigation of the relationships among variables of the groupthink model
对Janis的群体思维模型进行了全面实证检验，收集64个四人临时小组的数据，通过统计分析发现该模型关于变量间因果关系的预测仅部分正确。
Although a quarter of a century has passed since Janis proposed his groupthink model in 1972, there is very little consensus among researchers on the validity of the model. This study conducted a comprehensive empirical investigation of Janis's model by including all 24 variables in the research. Data were collected from 64 four-person ad hoc groups; the group discussion sessions were videotaped and content-analysed afterwards. Statistical analyses revealed that Janis's predictions about the causal relationship among four groups of variables in the model are only partially correct; when the effects of individual independent variables on the dependent variables were tested, Janis's predictions were confirmed in only two out of 23 cases. Copyright © 2000 John Wiley & Sons, Ltd.