Mobile phone addiction and mental health: the roles of sleep quality and perceived social support.

As a global phenomenon, mobile phone addiction has become an increasingly common issue among Chinese university students. Although previous research explored the link between mobile phone addiction and mental health, the possible mechanism underlying the above association is unclear. We administered a cross-sectional survey to 585 participants from two universities in Kunming, southwest China, from October 2021 to January 2022. Our results suggested that mobile phone addiction was negatively associated with mental health, and sleep quality partially mediated the relationship between mobile phone addiction and mental health. Furthermore, perceived social support positively moderated the direct effect of sleep quality on mental health, as well as the indirect effect of mobile phone addiction on mental health. These findings provide a new insight into the underlying mechanism by which mobile phone addiction affects university students' mental health. The results emphasize a necessary task for administrators, health workers, and family members to attach importance to the overuse of mobile phones among university students.

Public Service Motivation and Turnover Intention: Testing the Mediating Effects of Job Attitudes.

Research on the role of public service motivation (PSM) relating to work performance has been a significant topic in recent years; however, the relationship between PSM and job performance remains mixed. To investigate whether job attitudes mediate the effect of PSM on public employees' turnover intention, this study integrated job satisfaction and organizational commitment into a single model. Based on a sample of 587 full-time Chinese public employees, our findings revealed that job satisfaction and organizational commitment, respectively, mediated the negative association between PSM and employees' turnover intention. Multiple mediation analysis indicated that job satisfaction and organizational commitment sequentially mediated the effects of PSM on turnover intention. As a result, our findings suggested that public employees with high PSM levels preferred to stay in the public organizations. The theoretical and practical implications of our findings are discussed.