作者: Amanda G. Wills , Gregory Carey
DOI: 10.1017/THG.2013.51
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摘要: Both peer groups and genetics have been associated with adolescent smoking behavior. Recently, Loehlin (Loehlin, J. C. (2010). Is there an active gene-environment correlation in drinking behavior? Behavior Genetics, 40, 447-451) reported that twin differences alcohol use were the number of common friends. Twins more friends similar drinking, but only for dizygotic pairs. Using same sample as Loehlin's (the National Merit twins), we replicated all these findings a composite cigarette measure initiation, not persistence. The pattern results is most consistent homophily, or tendency to associate individuals are like oneself. If influence occurs presence then genotype-environment will be induced.