中文摘要：

在生态系统理论和社会学习理论基础上提出一个有中介的调节模型,探讨青少年感觉寻求与烟酒使用的关系,以及压力性生活事件的调节效应和结交不良同伴的中介效应。被试为660名青少年,研究工具包括青少年感觉寻求量表、压力性生活事件量表、不良同伴问卷和烟酒使用问卷。结果显示：（1）青少年感觉寻求是烟酒使用的风险因素。（2）压力性生活事件对感觉寻求与烟酒使用之间的关系具有风险增强的调节效应。（3）这种调节效应以结交不良同伴为中介变量。因此,青少年感觉寻求与烟酒使用之间既存在调节效应又存在中介效应。

英文摘要：

Based on ecological systems theory and social learning theory,this study constructed a mediated moderation model in which stressful life events moderated the relationship between sensation seeking and tobacco and alcohol use,and this moderation effect was mediated by affiliation with deviant peers. Participants were 660 adolescents,and they completed the sensation seeking scale,stressful life events scale,affiliation with deviant peers questionnaire,and tobacco and alcohol use questionnaire. The results indicated that：（1） adolescents’ sensation seeking was a risk factor of tobacco and alcohol use;（2） stressful life events moderated the effect of sensation seeking on tobacco and alcohol use;（3） affiliation with deviant peers mediated this moderation effect.