An 18-month randomized control research trial found that Little Brothers and Little Sisters:

• Were at least 46% less likely than controls to initiate drug use (stronger effect for minority males and females)
• Were 27% less likely to initiate alcohol use (stronger effect for females)
• Were 1/3 less likely to hit someone
• Were 52% less likely to skip school
• Were 37% less likely to skip a class
• Showed small gains in grade point averages and were more confident of their performance in schoolwork
• Had improved relations and levels of trust with their parents and their families
• Had improved peer relationships

Big Brothers Big Sisters volunteers had the greatest impact on alcohol and substance abuse prevention. The study found, that for every 100 youth between the ages of 10 and 16 who start using drugs, only 54 similar youth who are matched with a Big will start using drugs. Minority boys and girls were the most strongly influenced; they were 70 percent less likely than similar minority youth to initiate drug use.

EPIS has informational material and has created a logic model outlining the proximal and distal outcomes that BBBS has been proven to impact you can access on the BBBS Program Page.