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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具有约束力的喜欢：即使是新颖的观点分享也可以引发基于观点的识别


研究发现，基于观点一致的心理群体是一种重要的群体类型。先前的研究围绕可能与预先存在的身份相关的观点构建了这样的群体。我们通过使用新颖的观点来剥离社会结构背景，以确定观点一致性是否可以单独作为一种可以促进认同的类别线索，以及这种群体认同是否可以调节观点暴露和观点极化之间的关系。我们通过两个预先注册的在线互动实验对此进行了评估。研究 1（氮= 1168）表明意见一致比极小群体更能培养更强的认同感。研究 2（氮= 505）证明意见一致比非意见一致能促进更强的认同。舆论曝光和舆论两极分化之间的关系都是通过群体认同而发生的。结果表明，（新颖的）观点可以成为自我分类线索，为识别和影响观点极化提供信息。