Sociopsychological theorizing and research on collective action (e.g., social protests) has mushroomed over the last decade, studying a wide variety of groups, contexts, and cultures. Through a quantitative research synthesis of four motivations for collective action (1,235 effects from 403 samples; total N = 123,707), we summarize and synthesize this body of research into the dual chamber model, a comprehensive and potentially cross-cultural model of collective action. We aim to replicate previous meta-analytic conclusions (about identity, injustice, and efficacy) and break new theoretical ground by (a) integrating a fourth motivation (morality) into the very heart of the psychology of collective action, (b) extending these four motivations to advantaged group members acting in solidarity with the disadvantaged, and (c) integrating theoretically relevant structural (i.e., cultural and other contextual) constraints. Results substantiated the dual chamber model as all four motivations yielded unique, positive, medium-sized effects and interrelationships were positive (particularly among morality and identity, conceptualized as the dual chambers of the protester's beating heart). Meta-analytic structural equation modeling supported the added value of including morality. Moreover, findings confirmed that the strongest specific motivations were emotional injustice and politicized identification, while newly adding moral conviction to that list. Finally, the four motivations extended to advantaged group members acting in solidarity with the disadvantaged, while only the identity motivation was constrained by theoretically relevant cultural dimensions and values (e.g., collectivism and hierarchy). We discuss the implications and limitations of the dual chamber model for integrative theorizing, innovative research, and the practice of collective action. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

中文翻译：

---

走向一个关于人们为何参与集体行动的全面且潜在的跨文化模型：四种动机和结构约束的定量研究综合。

在过去十年中，关于集体行动（例如社会抗议）的社会心理学理论和研究如雨后春笋般涌现，研究了各种各样的群体、背景和文化。通过对集体行动的四种动机的定量研究综合（来自 403 个样本的 1,235 个影响；总 N = 123,707），我们将这一研究总结并综合成双室模型，这是一个全面且潜在的跨文化集体行动模型。我们的目标是复制先前的元分析结论（关于身份、不公正和功效）并通过（a）将第四种动机（道德）整合到集体行动心理学的核心中来打破新的理论基础，（b）扩展这些优势群体成员与弱势群体团结一致的四个动机，(c) 整合理论上相关的结构（即文化和其他背景）约束。结果证实了双室模型，因为所有四种动机都产生了独特的、积极的、中等的影响，并且相互关系是积极的（特别是在道德和身份之间，被概念化为抗议者跳动的心脏的双室）。元分析结构方程模型支持包含道德的附加值。此外，调查结果证实，最强烈的具体动机是情感不公正和政治化认同，同时新增加了道德信念。最后，四种动机延伸到与弱势群体团结一致的有利群体成员，而只有身份动机受到理论上相关的文化维度和价值观（例如集体主义和等级制度）的限制。我们讨论了双室模型对综合理论、创新研究和集体行动实践的影响和局限性。（PsycInfo 数据库记录 (c) 2021 APA，保留所有权利）。