在以中国社交媒体用户为对象的既有文献中，关于个体的性格特质以及心理状态对于其媒介使用效果的研究相对匮乏。为弥补此局限，本文采用了媒介心理学的研究路径，考察了个体的五大性格特质(big five personality traits)在社交媒体的使用与其社会资本的关系当中所发挥的调节作用，旨在对社交媒体使用的效果研究提供更多可参考实证证据。本研究将社会媒体用户的自身性格特征作为调节变量，通过对由问卷调查获得的 821位中国微博用户进行分析，多元回归的结果显示社交媒体用户的五大性格特质中除了“尽责性”(conscientiousness) 以外，其他四种性格特质包括“经验开放性”(openness to experience)、“外向性”(extraversion)、 “亲和性”(agreeableness)以及“情绪不稳定性”(neuroticism)均被证明可以显著调节个体通过社交媒体使用在其社会关系发展中所带来的收益。

Previous fndings in social media studies indicate a shortage of investigations regarding the role of personal factors, such as personalities and psychological status in use and effect of social media. Therefore, in order to contribute to a more comprehensive understanding of social media effect, the current study adopts an approach from media psychology and attempts to fll the gap of early research by examining the moderating role of personality traits in the relationship between social media usage and perceived social capital. Specifcally, the moderation effects of personality traits were investigated by analyzing data collected from 821 Chinese microblogging users. Results of hierarchical regression suggested that personality traits, including extraversion, openness, neuroticism, and agreeableness, have potential power to determine the degree of relational benefts gained from social media use. Keyword