大学生的冲动性特质与自杀意念的关系:一个有调节的中介模型
The Relationship between Impulsivity Traits and Suicide Ideation: A Moderate Mediation Model

以应激-易感模型为依据考察冲动性特质与自杀意念的关系，并在此基础上提出一个有调节的中介模型，探讨负性生活事件影响的中介作用以及家庭环境的调节作用。采用巴瑞特冲动性量表、青少年生活事件量表、家庭环境量表、贝克自杀意念量表对902名大学生进行集体施测，旨在考察负性生活事件的影响对大学生冲动性特质与自杀意念的中介作用以及家庭环境的调节作用，结果表明：（1）冲动性特质和负性生活事件的影响能正向预测大学生的自杀意念；（2）负性生活事件的影响在冲动性特质和自杀意念之间起中介作用；（3）负性生活事件影响的中介作用和冲动性特质的直接作用受家庭环境的调节。这些结果对于综合解释环境与个体因素对自杀意念的作用与机制具有重要意义。
Based on the stress-vulnerability model, this study constructed a moderated mediation model to examine whether the effect of life events mediated the relationship between impulsivity traits and suicide ideation, and whether this mediating process was moderated by the family environment. For this purpose, 902 college students were recruited to participate in this study with Barratt Impulsiveness Scale、Adolescent Self-Rating Life Events Check List、Family Environment Scale and Beck Scale for Suicide Ideation. The study indicated that:(1) impulsivity traits and the effect of negative life events significantly positively predicted suicide ideation; (2) the relationship between impulsivity traits and suicide ideation was significantly mediated by the effect of negative life events; (3) the mediating effects of negative life events and the directing effects of impulsivity traits were significantly moderated by family environment. These findings contribute to our understanding of a comprehensive interpretation of both environmental and individual factors' impact on suicide ideation.