Big Brothers Big Sisters (BBBS) Community-Based Mentoring (CBM) Program – This program offers one-to-one mentoring in a community setting for at-risk youth between the ages of 6 and 18. This program is rated Effective. It was associated with a statistically significant reduction in initiating drug and alcohol use and antisocial behavior among mentored youth, compared with non-mentored youth. Mentored youth also showed statistically significant improvement in relationships with parents and academic performance (i.e., better grades and fewer absences).