likely to drink than those whose peers did not drink; those who reported that most of their peers drank were 8.29 times more likely to drink. It should be noted that there is evidence that the converse is also true; perceiving less substance use among one’s peer group is associated with a lower probability of binge drinking (Stevens-Watkins & Rostosky, 2010). Specifically, the authors found that for every unit decrease in the perception of best friend’s substance use, the probability of binge drinking in high school among African American males decreased by 85%.