Procedure
Depression
The study was conducted in multiple steps. Initially, a sample of 300 graduate students from Fudan University was selected to participate in the research. These participants were asked to complete the Social Media Use Integration Scale (SMUIS) and the Depression Anxiety Stress Scales (DASS-21) to evaluate their social media use and mental health status. Next, a sample of 60 students from the same university was selected for the intervention study. These participants were randomly assigned to either an intervention group or a control group. The intervention group was given access to a mindfulness-based mobile app for eight weeks, while the control group received no intervention. Both groups completed the SMUIS and the DASS-21 at baseline, post-intervention, and three-month follow-up to evaluate the effectiveness of the intervention. Lastly, a qualitative study was conducted to gather in-depth information about the participants' experience with the mindfulness-based mobile app intervention. A purposive sample of 20 participants from the intervention group was selected for this study. They underwent semi-structured interviews to provide qualitative data about their perceptions and opinions regarding the intervention.