Although socialization theories (Bauman & Ennett, 1996; Leventhal & Cleary, 1980) explain the mechanisms by which peers influence substance use outcomes, individual differences in social goals may clarify who is at greatest risk from such influence. Social information-processing theory and research suggest that the perception of a social context activates a search for behavioral strategies that will increase the likelihood of obtaining desired social goals. Accordingly, we propose that high levels of agency and high levels of communion will increase susceptibility to peer influence on intentions to smoke and drink because engaging in substance use represents a viable means of meeting desired social outcomes of dominance and belongingness, respectively.
