title: Having mentors and campus social networks moderates the impact of worries and video gaming on depressive symptoms: a moderated mediation analysis.
abstract: BACKGROUND
  Easy access to the internet has spawned a wealth of research to investigate the effects of its use on depression. However, one limitation of many previous studies is that they disregard the interactive mechanisms of risk and protective factors. The aim of the present study was to investigate a resilience model in the relationship between worry, daily internet video game playing, daily sleep duration, mentors, social networks and depression, using a moderated mediation analysis.
  
  
  METHODS
  6068 Korean undergraduate and graduate students participated in this study. The participants completed a web-based mental health screening questionnaire including the Beck Depression Inventory (BDI) and information about number of worries, number of mentors, number of campus social networks, daily sleep duration, daily amount of internet video game playing and daily amount of internet searching on computer or smartphone. A moderated mediation analysis was carried out using the PROCESS macro which allowed the inclusion of mediators and moderator in the same model.
  
  
  RESULTS
  The results showed that the daily amount of internet video game playing and daily sleep duration partially mediated the association between the number of worries and the severity of depression. In addition, the mediating effect of the daily amount of internet video game playing was moderated by both the number of mentors and the number of campus social networks.
  
  
  CONCLUSIONS
  The current findings indicate that the negative impact of worry on depression through internet video game playing can be buffered when students seek to have a number of mentors and campus social networks. Interventions should therefore target individuals who have higher number of worries but seek only a few mentors or campus social networks. Social support via campus mentorship and social networks ameliorate the severity of depression in university students.
authors.forename: Jong-Sun
authors.initials: JS
authors.lastname: Lee
authors.affiliation: Laboratory of Clinical Neuroscience and Development, Graduate School of Medical Science and Engineering, KAIST, Daejeon, Republic of Korea. bs.jeong@kaist.ac.kr.
authors.forename: Bumseok
authors.initials: B
authors.lastname: Jeong
mesh_terms: D000293:Adolescent; D000328:Adult; D001007:Anxiety / Q000453:epidemiology / Q000523:psychology*; D015897:Comorbidity; D003863:Depression / Q000453:epidemiology / Q000523:psychology*; D005260:Female; D006801:Humans; D020407:Internet; D007723:Korea / Q000453:epidemiology; D008297:Male; D008611:Mentors / Q000523:psychology* / Q000706:statistics & numerical data; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D055500:Resilience, Psychological; D012720:Severity of Illness Index; D012890:Sleep; D060756:Social Networking; D012944:Social Support; D012959:Socioeconomic Factors; D013334:Students / Q000523:psychology* / Q000706:statistics & numerical data; D011795:Surveys and Questionnaires; D018910:Video Games / Q000523:psychology* / Q000706:statistics & numerical data; D055815:Young Adult