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In order to examine the relative influence of parents and peers on marihuana use among adolescents, independent data have been obtained from adolescents, their parents, and their best school friends in a sample of secondary school students in New York State. The data indicate that drug use by peers exerts a greater influence than drug use by parents. Friends are more similar in their use of marihuana than in any other activity or attitude. Parental use of psychotropic drugs has only a small influence, mostly related to maternal use. Peer and parental influences are synergistic; the highest rates of marihuana usage are observed among adolescents whose parents and friends are drug users.
Denise B. Kandel (Fri,) studied this question.