Over a 10-year span using the social norm intervention,Northern Illinois University experienced a ______% decrease in perceived high-risk drinking,a ______% decrease in actual high-risk drinking,and a ______% decrease in alcohol-related injuries.

A) 87; 80; 70
B) 67; 70; 40
C) 37; 30; 20
D) 7; 10; 5

Northern Illinois University implemented a social norm intervention that aimed to correct misperceptions about alcohol use among its students. Over a 10-year period, this approach led to significant reductions in both the perception and reality of high-risk drinking, as well as a decrease in alcohol-related injuries. The correct figures are a 37% decrease in perceived high-risk drinking, a 30% decrease in actual high-risk drinking, and a 20% decrease in alcohol-related injuries. These results highlight the effectiveness of social norm interventions in reducing harmful behaviors by addressing and correcting misconceptions within a community.