社交网站使用与青少年生活满意度的关系:一个有调节的中介模型

为探讨社交网站使用、线上社会资本、自尊与青少年生活满意度的关系，本研究在社会资本理论及自尊的社会计量器理论的基础上，构建了一个有调节的中介模型。采用社交网站使用强度问卷、线上社会资本问卷、自尊量表以及生活满意度问卷对初（1）到高（3）六个年级的1368名中学生（M=14.63岁，SD=1.75）进行调查研究，结果显示：（1）社交网站使用强度与线上黏接/桥接型社会资本和生活满意度均呈显著正相关；线上黏接型社会资本与自尊、生活满意度均呈显著正相关；线上桥接型社会资本与自尊呈显著正相关，与生活满意度的相关不显著；自尊与生活满意度呈显著正相关。（2）线上黏接型社会资本能够在社交网站使用强度与生活满意度的关系中起部分中介作用。（3）社交网站使用对生活满意度的直接预测作用及线上黏接型社会资本的中介效应会受到自尊的调节，相对于自尊水平低的青少年，社交网站使用更有利于高自尊个体获得线上黏接型社会资本、提升生活满意度。研究结果不仅有利于从社会资本理论及自尊的社会计量器理论视角理解社交网站使用与青少年生活满意度的关系，而且对引导青少年获取社会资本、提升生活满意度具有启示意义。

The Relationship between Social Network Sites Use and Life Satisfaction: A Moderated Mediation Model

In order to investigate the impact of social network site use on adolescents' life satisfaction as well as the effect of online social capital and self-esteem, a sample of 1368 middle and high school students (mean age=14.63 years, SD=1.75) completed Questionnaire of Social Network Site Intensity Scale, Internet Social Capital Scales, Rosenberg Self-esteem Scale and Satisfaction with life scale. All the measures have good reliability and validity. Data were collected and analyzed with SPSS 23.0 and SPSS PROCESS written by Hayes. Results revealed that:(1) The intensity of social network sites use was positively correlated with online bonding/bridging social capital and life satisfaction; online bonding social capital was positively correlated with self-esteem and life satisfaction; online bridging social capital was positively correlated with self-esteem, but does not show significant correlation with life satisfaction; self-esteem was positively correlated with life satisfaction. (2) The intensity of social network sites use could not only affect adolescents' life satisfaction directly, but also affect life satisfaction through the mediation of online bonding social capital, while the mediating role of online bridging social capital was not significant. (3) The direct effect of intensity of social network sites use on life satisfaction and the mediation of online bonding social capital were moderated by self-esteem, and they were much stronger among adolescents with high self-esteem. These findings contribute to our understanding of how and when social network sites use impacts adolescents' life satisfaction from the social capital theory and sociometer theory.