The Influence of Moral Identity on Prosocial Behavior: The Mediating Role of Belief in a Just World and Sense of Meaning in Life

道德认同是个体自我概念中的道德特质和价值观部分，对人们的行为有着重要的影响。本研究通过大规模问卷调查的横断面研究探讨了道德认同对亲社会行为的影响，以及生命意义感和公正世界信念在其中的作用。结果发现，道德认同与个体的亲社会行为高度正相关。公正世界信念和生命意义感在道德认同与亲社会行为之间起链式中介的作用。本研究的结果将有助于我们从公正信念和生命意义的角度系统地理解道德认同是如何影响个体的亲社会行为偏好。Moral identity is the part of moral traits and values in individual self-concept, which has an important impact on people’s behavior. Through a cross-sectional study of a large-scale questionnaire survey, this study explores the impact of moral identity on prosocial behavior, and the role of sense of meaning of life and belief in a just world. The results show that moral identity is highly positively correlated with individual prosocial behavior. The belief in a just world and the sense of meaning of life play a chain intermediary role between moral identity and prosocial behavior. The results of this study will help us systematically understand how moral identity affects individuals’ prosocial behavior preferences from the perspective of justice belief and life meaning.