社会排斥对跨期决策的影响:自我控制的中介作用和归属需求的调节作用

The Influence of Social Exclusion on Intertemporal Decision-making:The Mediating Role of Self-control and the Moderating Role of Need to Belong

目的:探讨社会排斥对跨期决策的影响,以及自我控制和归属需求在二者关系中的作用。方法:以265名大学生为被试,采用单因素被试间实验设计,自变量为情景类型(社会排斥/社会接纳),因变量为跨期决策时间折扣率,中介变量为状态自我控制,调节变量为归属需求。结果:(1)社会排斥正向预测时间折扣率;(2)自我控制在社会排斥和时间折扣率间起部分中介作用;(3)归属需求在社会排斥影响自我控制的路径中起调节作用。在被排斥个体中,相较于低归属需求的个体,高归属需求个体的自我控制资源下降得更多。结论:社会排斥会导致自我控制资源的下降,进而导致短视决策,但这一路径会因为个体归属需求的差异而不同。

Objective:To investigate the mediating role of self-control and the moderating role of the need to belong on intertemporal decision making influenced by social exclusion.Methods:A total of 265 college students were selected as research subjects.The experiment employed a one-way between-subjects design,with the independent variable being the type of social situation(social exclusion/social inclusion),the dependent variable being the time discount rate of intertemporal decision making,and the mediating variable being the state self-control,and the moderating variable being the need to belong.Results:(1)Social exclusion positively shaped the intertemporal decision making;(2)Self-control played a partial mediating role between social exclusion and intertemporal decision making;(3)The need to belong played a moderating role in the first half of model.When excluded,the self-control resources of individuals with a high need to belong decreased more than those with a low need to belong.Conclusion:Our findings indicate that social exclusion may lead to a decline in self-control resources,which further lead to short-sighted decisions,but this impact is moderated by individual differences in the need to belong.