The purpose of this research is to test the feasibility and efficacy of a brief (one session) preventative intervention using motivational interviewing integrated with social network counseling for substance use among adolescent patients in a primary care setting. One hundred participants will be randomly assigned to either motivational interviewing integrated with social network counseling or attention control conditions. The motivational interviewing integrated with social network counseling condition is expected to show improvement when compared to the attention control condition.

Inclusion Criteria:

• 14-18 years old
• Resident of Richmond VA or greater Richmond area
• Patient at Virginia Commonwealth University or Richmond City Department of Health

Exclusion Criteria:

• Ward of the state
• Not fluent in English
• Incapable of providing consent