The cross-lagged study between cyberbully and suicidal ideation among college students
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摘要:
目的 了解网络欺凌与大学生自杀意念的因果关系及内在发生机制，为有效干预大学生自杀行为提供纵向证据。 方法 基于一般压力理论，采用纵向设计，使用受网络欺凌行为问卷、自杀意念量表以及流调用抑郁自评量表(CES-D)对北京市和西安市4所高校的558名大学生进行2次追踪测试，建构以抑郁为中介的交叉滞后模型。 结果 交叉滞后分析结果表明，前期网络欺凌正向预测了后期大学生的抑郁症状和自杀意念(β值分别为0.06，0.15，P值均 < 0.01)，且前期抑郁正向预测后期自杀意念(β=0.29，P < 0.01)；前期抑郁在前期网络欺凌与后期大学生自杀意念之间发挥中介效应。跨群组分析显示，网络欺凌、抑郁与自杀意念之间的纵向中介关系存在性别差异，即女生比男生更易受到网络欺凌的影响，且更易产生抑郁情绪与自杀意念。 结论 网络欺凌与大学生自杀意念之间存在纵向因果关系，依据性别干预大学生的抑郁情绪对自杀行为具有一定的实践意义。 Abstract:Objective To provide longitudinal evidence for interventions in suicidal behavior among college students, this study explored the mechanisms underlying the relationship between cyberbully. Methods Based on the general strain theory, 558 college students from Beijing and Xi'an were followed up 2 times(T1 and T2) by using the Cyberbullying Questionnaire, Beck Scale for Suicide Ideation and Center for Epidemiological Survey-Depression Scale(CES-D). Results T1 cyberbully could positively predict depression and suicidal ideation among college students at T2(β=0.06, 0.15, P < 0.01), and depression at T1 could positively predict suicidal ideation among college students at T2(β=0.29, P < 0.01). The mediation effect revealed that depression at T1 could mediate the relationship between cyberbully and suicidal ideation. Compared to boys, girls were likely to be affected by cyberbully and resulted in depression and suicidal ideation. Conclusion Findings contribute to the prespective causal relation between cyberbullying and suicidal ideation among college students and provide the longitudinal evidence for intervention of suicidal ideation. -
Key words:
- Internet /
- Violence /
- Suicide /
- Mental health /
- Students
1) 利益冲突声明 所有作者声明无利益冲突。 -
图 1 网络欺凌与大学生自杀意念的交叉滞后模型
Figure 1. The cross-lagged model of Internet cyberbullying and suicidal ideation of college students
图 2 大学生抑郁在网络欺凌与自杀意念间的纵向中介模型
Figure 2. Longitudinal mediating model of college students' depression between Internet bullying and suicidal ideation
图 3 男生抑郁在网络欺凌对自杀意念影响中的纵向中介模型
Figure 3. Longitudinal mediating model of depression between Internet bullying and suicidal ideation in male students
图 4 女生抑郁在网络欺凌对自杀意念影响中的纵向中介模型
Figure 4. Longitudinal mediating model of depression between Internet bullying and suicidal ideation in female students
表 1 大学生网络欺凌与自杀意念及抑郁的相关系数(n=558，r值)
Table 1. Correlations between Internet bullying and suicidal ideation depression in college students(n=558, r)
变量 T1网络欺凌 T2网络欺凌 T1自杀意念 T2自杀意念 T1抑郁 T2网络欺凌 0.65 T1自杀意念 0.25 0.23 T2自杀意念 0.17 0.22 0.58 T1抑郁 0.22 0.21 0.50 0.37 T2抑郁 0.15 0.19 0.35 0.51 0.40 注：P值均 < 0.01。 
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表 2 男生与女生的交叉滞后模型结果比较
Table 2. Comparative results of cross-lagged model between boy and girl
模型 模型拟合 模型比较 χ2值 df CFI TLI RMSEA AIC EVIC Δχ2值 Δdf P值 模型3自由估计 306.79 6 0.98 0.94 0.02 396.79 0.47 模型4结构加权模型 332.89 14 0.98 0.95 0.02 394.12 0.23 25.98 8 < 0.05 模型5结构协方差模型 348.43 26 0.97 0.94 0.03 547.43 0.32 41.64 20 < 0.05
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