Explanations for conformity Deutsch & Gerard (1955) - devised the dual process model of conformity.
Normative social influence = following the crowd, to avoid rejection/ridicule, want to be liked by other members of the group. Not likely to change private opinion, affects public opinion to fit in, socially rewarding.
RS Verkoojen et al (2007) 6000pps (16-20) in Denmark did a survey those who identified as skates, hip-hop, hippie were more likely to use drugs compared to those who identified as nerdy, sporty and religious & they were less likely to do drugs.