What makes followers act collectively when called upon by their leaders? To answer this question, participants were randomly allocated to leader–follower relationships embedded either in a partisan group or a workgroup context; and the relationship between identity leadership and collective action through ingroup identification (Study 1: N = 293) or both ingroup identification and group-efficacy (Study 2: N = 338) were assessed. Based on the model of identity leadership, we predicted and found that identity leadership was positively related with intentions for collective action when called upon by the leader, both via ingroup identification and belief in group efficacy. As predicted, the social identity process for the effectiveness of identity leadership was more important in partisan groups than in workgroups. The efficacy related process was group context invariant. These results have implications for our understanding of group processes involved in the leadership in collective action.

是什么让追随者在他们的领导呼吁时采取集体行动？为了回答这个问题，参与者被随机分配到嵌入党派团体或工作组环境中的领导-追随者关系中；并通过内群体认同（研究 1：N = 293）或内群体认同和群体效能（研究 2：N = 338）评估身份领导与集体行动之间的关系。基于身份领导模型，我们预测并发现，身份领导与领导者呼吁时的集体行动意图呈正相关，无论是通过内群体认同还是对群体效能的信念。正如预测的那样，对于身份领导有效性的社会身份过程在党派团体中比在工作团体中更为重要。功效相关过程是组上下文不变的。这些结果对我们理解集体行动中的领导力所涉及的群体过程具有重要意义。