Département de Psychologie, Université du Québec à Montréal, Case postale 8888, Succursale Centre-ville, H3C 3P8 Montréal, Canada.
J Adolesc. 2011 Apr;34(2):249-56. doi: 10.1016/j.adolescence.2010.05.006. Epub 2010 Jun 18.
There is a strong empirical connection between individual and peer substance use during adolescence. The determination of whether this level of covariation reflects influence or selection is obscured by both the design and measurement strategies used. This present study utilizes a short-term longitudinal design with bi-monthly assessments to address the following two hypotheses: a) Adolescents select friends on the basis of their substance use, and b) New friend substance use predicts changes in future use. French Canadian adolescents (n = 143) were interviewed on their friendship networks and substance use behaviors (e.g., tobacco, alcohol and marijuana) four times during a school year. Cross-lag panel models revealed that adolescents who use substances tend to select new friends who use. Moreover, once in the network, these new friends also contribute to changes in the adolescents' substance use. These findings are relevant to understanding the multiple functions of adolescent substance use.
青少年时期个体与同伴的物质使用之间存在着强烈的经验关联。由于设计和测量策略的原因，这种共同变化的程度反映的是影响还是选择，这一点并不明确。本研究采用短期纵向设计，每两个月评估一次，以验证以下两个假设：a）青少年根据自己的物质使用情况选择朋友，b）新朋友的物质使用情况预测未来使用情况的变化。在一个学年中，对 143 名法裔加拿大青少年进行了关于他们的友谊网络和物质使用行为（如烟草、酒精和大麻）的四次访谈。交叉滞后面板模型显示，使用物质的青少年往往会选择新的使用物质的朋友。此外，一旦进入网络，这些新朋友也会导致青少年物质使用的变化。这些发现对于理解青少年物质使用的多种功能具有重要意义。
