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目的:考察冲动性与抑郁情绪在应激生活事件与大学生自杀意念之间的中介效应与调节效应.方法:采用自杀风险评估问卷-自杀意念分量表、中文版Barratt冲动性人格量表、症状自评量表-抑郁分量表和青少年生活事件量表对2326名大学生进行测量.结果:①应激生活事件与大学生自杀意念之间呈显著正相关;②抑郁情绪在应激生活事件与大学生自杀意念之间起部分中介作用;③冲动性人格在应激生活事件与大学生自杀意念之间既有中介作用,又有调节作用.结论:应激生活事件、冲动性人格和抑郁情绪对大学生自杀意念的产生有重要影响.“,”Objective: To explore the mediate and moderate effects of impulsiveness and depression on the relationship between stress life events and college students' suicidal ideation.Methods: 2326 college students were tested with the following instruments: College Student Suicidal Risk Inventory-Suicidal Ideation Subscale(CSRI-SI),Chinese version of Barratt Impulsiveness Scale(CBIS),Symptom Check List 90-Depression Subscale(SCL90-D) and Adolescent Self-Rating Life Events Check List(ASLEC).Results: ①Stress life events positively correlated with college students' suicidal ideation significantly;②Depression partly mediated the effect of stress life events on college students' suicidal ideation;③Impulsiveness played the role of mediator and moderator in the relationship between stress life events and suicidal ideation.Conclusion: Stress life events,impulsiveness and depression play an important role in the coming out of suicidal ideation.