Data on the model of loneliness and smartphone use intensity as a mediator of self-control, emotion regulation, and spiritual meaningfulness in nomophobia.

The study was conducted in three locations: Yogyakarta, Palembang, and Jambi. A total of 355 psychology students from three different universities were recruited using purposive sampling. Among the participants, there were 313 females (88.03%) and 42 males (11.83%). The participants completed several questionnaires in the Indonesian version, including the nomophobia NMP-Q scale (Yildirim & Correia, 2015), the R-UCLA Loneliness Scale (Russell et al., 1980), the self-control scale (Tangney, Baumeister & Boone, 2004), the Difficulties in Emotion Regulation Scale (DERS; Gratz & Roemer, 2004), and the Spiritual Meaningfulness scale developed based on the theory of Pargament (2007). Before commencing the analysis, the research team ensured the accuracy and reliability of the collected data sets. Participants who did not fully complete the questionnaire were removed from the sample. Ethical clearance for this study was obtained from the research ethics committee, and the researchers obtained permission from the respective university administrations for data collection. Prior to participation, all individuals agreed to take part in the study, provided voluntary informed consent, and were assured of the confidentiality and anonymity of their responses.