Longitudinal Effect of Depression on Generalised Pathological Internet Use and the Mechanisms of This Effect: A Four-Wave Follow-Up of Chinese University Students.

Abstract

By employing the cognitive-behavioural model and self-control theory, the present study investigated the longitudinal effects of depression on GPIU. Although numerous cross-sectional studies have investigated the association between depression and generalised pathological Internet use (GPIU), debates persist regarding the longitudinal effects of depression on GPIU. Moreover, little is known regarding the longitudinal mechanisms underlying this association. A total of 912 university students with an average age of 18.36 years (standard deviation = 0.82 years) at the time of the first survey participated in the study. They completed four assessments spaced 6 months apart over a 2-year period. The results indicate that (i) depression can predict GPIU over time; (ii) depression can predict GPIU through the mediating effects of perceived social support, maladaptive cognitions, and self-control over time respectively; and (iii) depression can predict GPIU through sequential mediating effects of perceived social support to self-control over time. Additionally, the associations among studied variables were more suitable for male, urban registered residence, and low family income students. These results have implications for interventions targeting GPIU.