Relationship Between Problematic Smartphone Use and Graduate Students’ Research Self-Efficacy: A Moderated Mediation Model

As Generation Z youth grow up with the Internet, problematic smartphone use is growing more prevalent. This study administered questionnaires containing measures such as the Mobile Phone Addiction Index, the Research Self-Efficacy Scale, the Depression Anxiety Stress Scale, and the Stress Mindset Measure. The survey targeted 2278 graduate students and explored the mechanism through which problematic smartphone use affects research self-efficacy (RSE). The results reveal that problematic smartphone use has significant negative effects on self-efficacy, with mental stress playing a mediating role in this process; that is, problematic smartphone use lowers RSE by increasing mental stress. Meanwhile, the aforementioned negative impacts caused by problematic smartphone use are moderated by stress mindsets: the "stress-is-enhancing" mindset reduces the negative effects of smartphone use on RSE, whereas the "stress-is-debilitating" mindset amplifies these negative effects by enhancing the mediating effect of mental stress.