不同社交网站使用与大学生抑郁的关系:链式中介模型

为探讨不同社交网站使用（微信和微博）和大学生抑郁的关系以及上行社会比较和妒忌在其中的链式中介作用，采用问卷法对481名大学生进行施测。结果发现：（1）微信对大学生抑郁的总效应不显著，而微博对大学生抑郁的总效应显著，即微博使用越多，抑郁越多；（2）微信使用既可以直接负向预测抑郁，也可以通过上行社会比较和妒忌的链式中介作用间接地正向预测抑郁；而微博使用不能直接预测抑郁，其效应完全由上行社会比较和妒忌所链式中介。研究提示，微信使用和微博使用与大学生抑郁的关系及其机制是不同的，微信比微博有更复杂的作用机制和多种效应。

Relationship between the Use of Different Social Networking Sites and Depression among Undergraduates: A Chain Mediation Model

The present study explored the relationship between the use of different social networking Sites (SNSs) (WeChat and microblog) and depression among undergraduates, as well as the possible chain mediation roles of upward social comparison and envy in this relationship. A total of 503 undergraduates with both WeChat and microblog accounts were surveyed by questionnaires. The main results indicated that: (1) The total effect of WeChat use on undergraduates' depression was not significant, while more microblog use was related to more depression. (2) WeChat use could not only directly predict depression negatively, but also indirectly positively predict it through upward social comparison and envy serially, whereas microblog use could not directly predict depression, but indirectly predict it through the chain mediation role of upward social comparison and envy positively. These findings suggest that WeChat use has different association with undergraduates' depression from microblog use and more diverse pathways to undergraduates' depression than the latter.