Kuntsche E, Stewart SH.
Swiss Institute for the Prevention of Alcohol and Drug Problems, Switzerland. J Health Psychol. 2009 May.

A structural equation model was estimated based on a Swiss national sample of 5649 12- to 18-year-olds to test whether individual drinking motives mediate the link between classmates’ motives and individual alcohol use. Results showed that the social, enhancement, coping and conformity motives of individual students are associated with the corresponding motive dimension of other students in the class. No direct effect of the four classmates’ motives on individual drinking, but an indirect effect via individual motives was observed. It appears that drinking motives within the adolescent social environment exert their influence on drinking by way of shaping individual motives.