Online Appendix B. Secondary Outcome Measures Table B1. Secondary Outcome Measures Measure Scoring Instrument (Source) Alcohol Misusea 1 = score of 8 or more Alcohol Use Disorders 0 = score < 8 Identification Test (AUDIT; Babor, Higgins-Biddle, Saunders, & Monteiro, 2001) Nicotine Dependencea 1 = score of 3 or more Fagerström Test (Heatherton, 0 = score < 3 Kozlowski, Frecker, & Fagerstrom, 1991) Marijuana Dependencea 1 = meets criteria for abuse or Diagnostic Interview dependence, 0 = does not meet criteria; Schedule (DIS; Robins, symptoms assessed using Diagnostic Cottler, Bucholz, & and Statistical Manual of Mental Compton, 1995) Disorders, 4th Edition (DSM-IV; American Psychiatric Association, 2000) Illicit Drug Dependencea 1 = meets criteria for abuse or Diagnostic Interview dependence; 0 = does not meet criteria Schedule (DIS; Robins et al., Symptoms assessed using DSM-IV criteria(DSM-IV; American Psychiatric Association, 2000) 1995) Measure Scoring Major Depression 1 = meets criteria for major Instrument (Source) Patient Health Questionnaire depression, 0 = does not meat criteria; (PHQ-9; Kroenke, Spitzer, & DSM-IV (DSM-IV; American Williams, 2001) Psychiatric Association, 2000)major depression is indicated if at least 5 of 9 symptoms are experienced more than half of the days in the past 2 weeks and at least one of the symptoms is depressed mood or anhedonia. Suicide Youth Risk Behavior Survey Seriously considered 1 = yes, 0 = no (YRBS; Centers for Disease Made a plan 1 = yes, 0 = no Control and Prevention, 2011) Actual attempt 1 = yes, 0 = no High School Graduation 1 = yes, 0 = dropped out or GED 2011 school records (for 82% 1 = Dropped out, 0 = GED or High of the sample) supplemented School diploma with self-reports from the Grade 12 and age 19 surveys when school information was not available. There was 94% agreement between school reports and self-reports for Measure Scoring Instrument (Source) those where both sources of data were available. Notes: All measures are assessed for the past 12 months. a Respondents who did not use a given substance in the past year or used it on less than six occasions were classified as not meeting criteria for disorder. References American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorders DSM-IV-TR. 4th ed. Washington, DC: American Psychiatric Association. Babor, T. F., Higgins-Biddle, J. C., Saunders, J. B., & Monteiro, M. G. (2001). AUDIT: The Alcohol Use Disorders Identification Test: Guidelines for use in primary care (2nd ed.). Geneva: World Health Organization Department of Mental Health and Substance Dependence. Centers for Disease Control and Prevention. (2011). Youth Risk Behavior Surveillance System (YRBSS). Retrieved from www.cdc.gov/yrbs Heatherton, T. F., Kozlowski, L. T., Frecker, R. C., & Fagerstrom, K. O. (1991). The Fagerstrom Test for Nicotine Dependence: A revision of the Fagerstrom Tolerance Questionnaire. British Journal of Addiction, 86, 1119-1127. Kroenke, K., Spitzer, R. L., & Williams, J. B. W. (2001). The PHQ-9 - Validity of a brief depression severity measure. Journal of General Internal Medicine, 16, 606-613. Robins, L. N., Cottler, L. B., Bucholz, K. K., & Compton, W. M. (1995). Diagnostic Interview Schedule for DSM-IV. St. Louis, MO: Washington University.