本研究提出了一个结合社会支持和健康信念模型的心理测量模型，通过结构方程模型考察了在中国武汉因新冠肺炎而进行的第一次全市封锁期间，社交媒体的使用如何影响居民对隔离措施的遵守程度。我们模拟了人口普查的人口统计变量分布，进行了一个全市范围的调查，获得有效样本735份。研究发现，社会支持是社交媒体影响居民对隔离的感知利益和风险，从而影响他们对隔离政策的遵守程度的一个重要心理代理。

The current study proposes a psychometric model combining social support and the Health Belief Model and examines how social media use influences residents’ compliance level with quarantine measures during the first city-wide lockdown due to COVID-19 in Wuhan through structural equation model.

We conducted a citywide survey, and obtained 735 valid samples. The demographics mimicked the 2010 national population census conducted by the National Bureau of Statistics of China in terms of gender, age and education. It is found that social support is a significant psychological proxy for social media to influence residents’ perceived benefits and risks of quarantine, and consequently their compliance levels with quarantine policies.

Through data analysis, we find that Social Support significantly mediates the effect of Social Media Use on Perceived Benefits and Perceived Risks of Quarantine, and has a significant direct effect on quarantine Self-Efficacy. And Social Support will have significant indirect effects on Self-Efficacy through Perceived Benefits of Quarantine and Perceived Risks of Quarantine. Through self-efficacy, Perceived Benefits of Quarantine and Perceived Risks of Quarantine will ultimately affect residents' Quarantine Compliance.