Design
anxiety
This was a multi-phase research design. In the first phase, a correlational research method was used for exploring the correlation among the research variables. In the second phase, we used a pretest–posttest randomized controlled trial to assess the effectiveness of a mindfulness-based mobile app intervention on symptoms of anxiety, loneliness, and well-being. Moreover, in the third phase, a qualitative research method was used for exploring the participants’ perceptions of mindfulness-based intervention.