Research has found that psychological groups based on opinion congruence are an important group type. Previous research constructed such groups around opinions potentially connected to pre‐existing identities. We strip away the socio‐structural context by using novel opinions to determine whether opinion congruence alone can be a category cue which can foster identification and whether such group identification mediates the relationship between opinion exposure and opinion polarization. We assess this across two pre‐registered online interactive experiments. Study 1 (N = 1168) demonstrate that opinion congruence fostered stronger identity than minimal groups. Study 2 (N = 505) demonstrate that opinion congruence fostered stronger identification than non‐opinion congruence. The relationship between opinion exposure and opinion polarization occurs through group identification in both. Results demonstrate that (novel) opinions can be self‐categorization cues informing identification and influencing opinion polarization.

中文翻译：

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束缚的喜欢：即使是新颖的观点分享也可以诱导基于观点的识别


研究发现，基于意见一致性的心理群体是一种重要的群体类型。以前的研究围绕可能与预先存在的身份有关的观点构建了这样的群体。我们通过使用新的观点来剥离社会结构背景，以确定意见一致性是否可以单独成为可以促进认同的类别线索，以及这种群体认同是否介导了观点暴露和观点两极分化之间的关系。我们通过两个预先注册的在线互动实验来评估这一点。研究 1 （N = 1168） 表明，意见一致性比最小群体培养了更强的认同感。研究 2 （N = 505） 表明，意见一致性比非意见一致性更强地促进了认同。意见曝光和意见两极分化之间的关系是通过两者的群体识别来实现的。结果表明，（新奇的）观点可以成为自我分类线索，为识别和影响观点两极分化提供信息。