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Co-occurring disorder: dual diagnosis of a substance use disorder and a mental illness

Evidence-based program/practice/intervention: a program that has been shown through research and scientific methods to be effective in achieving the program’s outlined goals and objectives

Institute of Medicine (IOM) Prevention Classifications: categories which identify the population that an intervention’s strategy will reach; four classifications—universal direct, universal indirect, selective, indicated (link to more information on IOM classification categories)

National Registry of Evidence-Based Programs and Practices (NREPP): a database of mental health and substance abuse prevention and treatment programs that meet rigorous standards for effectiveness

Office of Adolescent Health’s Teen Pregnancy Prevention Program: a database of adolescent pregnancy prevention and sexual education programs; provides funding for these programs throughout the United States; develops new pregnancy prevention programs; evaluates programs for effectiveness

Substance Abuse and Mental Health Services Administration (SAMHSA): an agency within the United States Department of Health and Human Services that provides information and resources on behavioral health issues, including substance use disorders and mental illnesses