The moderated mediating effect of parental smartphone addiction in the relationship between smartphone addiction, sleep duration, and depression among adolescents

Purpose: This study aimed to examine whether sleep duration mediated the relationship between adolescent smartphone addiction and depression. Moreover, we investigated whether the mediating effects of sleep duration were moderated by parental smartphone addiction. Methods: Wave 4(2021) data collected in 2021 from the Korean Children and Youth Panel Survey (KCYPS) 2018 was used. The data collected from 4,392 matched pairs of parents and their children was analyzed, using the SPSS PROCESS macro. Results: Sleep duration partially mediated the relationship between adolescent smartphone addiction and depression. Also, parental smartphone addiction moderated the indirect effect of this mediation model. Conclusion: This suggests that it is necessary to include content on the use of smartphones by adolescents as well as their parents when designing education and intervention programs to prevent depression in adolescents.