Abstract This paper proposes social identity as a psychological concept that connects societal and individual aspects of transformation processes. To this end, we embed the social identity concept into the multilevel perspective, a framework frequently used for analysing societal transformation processes. The paper presents three meta-analyses summarizing the empirical evidence for the postulated strong pro-environmental social identity-pro-environmental collective action link. A first meta-analysis (nine samples) finds a pooled correlation of r+ = .63 between pro-environmental social identity and intention to participate in pro-environmental collective action. This finding is replicated in a second meta-analysis, which shows a correlation of r+ = 0.56 (15 samples). The third meta-analysis supports that pro-environmental social identity is a stronger predictor of collective pro-environmental action than of individual pro-environmental private-sphere behavior (r+ = 0.35; eight samples). We discuss implications of these findings for further research and highlight power and ideology as additional transformation-oriented psychological constructs.

中文翻译：

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社会认同是将变革性社会变革与个人环境行动主义联系起来的关键概念

摘要 本文提出社会认同是一个心理学概念，它连接转型过程的社会和个人方面。为此，我们将社会认同概念嵌入多层次视角，这是一个经常用于分析社会转型过程的框架。本文提出了三项元分析，总结了假设的强大的亲环境社会认同 - 亲环境集体行动联系的经验证据。第一个荟萃分析（九个样本）发现亲环境社会认同与参与亲环境集体行动的意愿之间存在 r+ = .63 的汇总相关性。这一发现在第二个荟萃分析中得到了重复，显示相关性为 r+ = 0.56（15 个样本）。第三个荟萃分析支持亲环境社会认同是集体亲环境行动的更强预测因子，而不是个人亲环境私人领域行为（r + = 0.35；八个样本）。我们讨论了这些发现对进一步研究的影响，并强调权力和意识形态作为额外的以转型为导向的心理结构。