Hierarchical Linear Model of Internet Addiction and Associated Risk Factors in Chinese Adolescents: A Longitudinal Study

Associations between problematic internet use, life satisfaction, and deliberate self-harm among Chinese adolescents: A multi-centered longitudinal study

INTRODUCTION

Problematic Internet use (PIU), which is associated with deliberate self-harm (DSH), has become a common problem among adolescents. Life satisfaction (LS) may be able to mitigate the negative influences of PIU and DSH. But the longitudinal associations among them are yet to be well-researched.

METHODS

A longitudinal study with three-wave data collection involving 6092 adolescents was carried out in China. PIU, LS, and DSH were assessed using the Young Internet Addiction Test, the Satisfaction with Life Scale, and the Deliberate Self-Harm Inventory Nine-Item Version, respectively. A cross-lagged model was used to analyze the longitudinal interactions between them. Generalized Estimating Equations were adopted to identify their influential factors.

RESULTS

The prevalence of single DSH behaviors from wave 1 to wave 3 was 5.04%, 5.00%, and 4.67%, and the repeated DHS from wave 1 to wave 3 was 2.9%, 3.2%, and 3.4%, respectively. Bidirectional longitudinal predictive associations were revealed between PIU and LS (p＜0.001), and LS and DSH (p＜0.001). DSH could longitudinally predict PIU (p＜0.001). Gender and age were associated with PIU, LS, and DSH (p＜0.001), and PIU was influenced by ethnicity (p＜0.001).

CONCLUSION

PIU and LS, LS and DSH were associated bidirectionally. Adolescents with more severe DSH behaviors were inclined to become addicted to the Internet, and adolescents with a history of DSH had a higher risk of recurring DSH. Parents, schools, and administrators need to improve the LS of adolescents, with a particular focus on older, female adolescents.

The Relationship between Mobile Phone Dependence and Subjective Well-Being of College Students in China: A Moderated Mediation Model

Many studies have shown that mobile phone dependence decreases subjective well-being, but there have been relatively few studies that investigate the specific mechanisms between mobile phone dependence and subjective well-being. In this study, the mediating effect of self-esteem and the moderating effect of social support were investigated to explore the specific mechanisms between mobile phone dependence and subjective well-being. The objective of the study is to explore the mechanism of mobile dependence on subjective well-being by constructing a moderated mediation model. College students from twenty classes in three universities were randomly selected. A total of 550 college students fully participated in the actual evaluation and completed the general well-being scale, mobile phone addiction index scale, self-esteem scale, and social support scale. SPSS17.0 was used to analyze the data. The results show that: (1) Self-esteem partially mediates the relationship between mobile phone dependence and subjective well-being. Mobile phone dependence not only has a direct influence on subjective well-being, but also influences subjective well-being indirectly by self-esteem; (2) The mediating effect of self-esteem between mobile phone dependence and subjective well-being is moderated by social support. Social support moderates the second path of the mediation, and the higher the social support, the greater the degree of self-esteem on subjective well-being. For the management of mobile phone dependence of college students, more attention needs to be paid to the personality characteristics of different students. In addition, there should be efforts to avoid blindly educating students and instead to increase their social support and create a good atmosphere on campus and in society. Only in this way can they improve their subjective well-being.