被动性社交网站使用与青少年体像烦恼的关系:体像比较和体像自我差异的中介作用

为探讨被动性社交网站使用和青少年体像烦恼的关系，基于社会比较理论和自我差异理论，采用被动性社交网站使用问卷、社交网站体像比较量表、理想体像问卷和体像烦恼量表，对789名初、高中生进行调查。结果表明：（1）被动性社交网站使用对青少年体像烦恼具有显著的正向预测作用；（2）体像比较和体像自我差异能在被动性社交网站使用和体像烦恼的关系中起中介作用；（3）在被动性社交网站使用与体像烦恼的关系中，女生的体像比较和体像自我差异起并行中介作用，而对男生而言，体像比较和体像自我差异起链式中介作用。研究结果表明被动性社交网站使用不仅能直接影响青少年的体像烦恼，还可通过体像比较和体像自我差异的间接作用对青少年体像烦恼产生影响，且中介路径存在性别差异。

The Relationship between Passive Social Network Sites (SNSs) Use and Adolescents' Body Image Depression: Mediating Role of Appearance-related Comparison and Appearance Self-discrepancy

The purpose of this study was to investigate the relationship between passive SNSs use and body image depression in adolescents, as well as underlying mechanisms. Based on social comparison theory and self-discrepancy theory, we used a questionnaire including Surveillance Use Scale, the SNS Appearance Comparison Scale, the Body-Image Ideals Questionnaire (BIQ), and Body Image Depression Questionnaire, on 789 high school students from two full-time middle schools in Nanchang and Wuhan. The results indicated that:(1) There were significant correlations between passive SNSs use, appearance-related comparison, appearance self-discrepancy and body image depression in both boys and girls except the correlation between passive SNSs use and appearance self-discrepancy in girls; (2) Appearance-related comparison and appearance self-discrepancy played mediating roles between passive SNSs use and body image depression, and gender differences existed in such mediation effects. In particular, passive SNSs use predicted females' body image depression indirectly through two paths:one was the mediating role of appearance-related comparison; and the other was the mediating role of appearance self-discrepancy. While for males, passive SNSs use predicted body image depression indirectly through different two paths:one was the mediating role of appearance-related comparison; and the other was the chain mediating role of both appearance-related comparison and appearance self-discrepancy. To conclude, this study uncovered the mechanisms underlying the relationship between passive SNSs use and body image depression, and gender difference in indirect paths, which contributed to the understanding of the complex mechanism between social network sites usage and its outcomes.