冲动性在负性情绪与大学生网络过度使用间的中介作用

Mediating Effect of Trait Impulsivity Between Negative Affect and Internet Overuse in College Students

目的:探讨冲动性在负性情绪与网络过度使用之间的中介作用。方法:采用网络成瘾诊断问卷、网络成瘾测验、抑郁-焦虑-压力量表、BIS-11冲动量表对1044名大学生进行调查。结果:①大学生网络过度使用的检出率为6.7%;②网络过度使用阳性组具有更高的冲动性,更多的负性情绪;③相关分析发现,网络过度使用诊断问卷得分、网络过度使用测验得分与抑郁-焦虑-压力量表总分及因子分、BIS-11冲动量表总分及因子分呈显著正相关(P<0.01);④回归分析发现,压力因子及无计划因子对网络过度使用诊断问卷得分具有预测作用,抑郁-焦虑-压力量表总分及BIS-11冲动量表总分对网络过度使用测验得分具有预测作用;⑤中介效应分析发现冲动性在负性情绪与网络过度使用间起着部分中介作用,中介效应占总效应的比例分别为43.57%、52.91%。结论:冲动性在负性情绪和网络过度使用测验间中介效应显著。

Objective： To investigate the internet overuse prevalence rate among college students, discuss the relation- ship among impulsivity, negative affect and internet overuse, and explore impulsivity＇ s mediating effect. Methods： 1044 college students were asked to complete the IADQ（Internet overuse Diagnosis Questionnaire）, IAT（Internet Addiction Test）, BIS-1 l（Barratt Impulsiveness Seale）, DASS-21（Depression, Anxiety and Stress Scale）. Results： （1）The prevalence rate of interuet overuse among college students was 6.7 %; （2）the internet overuse group had a significant higher BIS-11, DASS-2! total and subscales score than control group （P〈0.05）; （3）The IADQ, IAT scores were positively correlated with BIS-11, DASS-21 total and subscales score Significantly （P〈0.01）; （4）Depression and non-planning score could predictive IADQ score, B1S-11, DASS-21 total score could predictive IAT score; （5）The effect of negative affect on internet overuse was par- dally mediated by impulsivity, and the mediating effect made up 43.57% ,52.91% of the total effect. Conclusion： Internet overuse was closely related to impulsivity and negative affect; impulsivity serves as a mediator variable between negative af- fect and internet overuse.