Study 1 – Rural Iowa:
Spoth, Richard, G. Kevin Randall, Linda Trudeau, Chungyeol Shin, and Cleve Redmond.  “Substance use outcomes 5 1/2 years past baseline for partnership-based, family-school preventive interventions.”  Drug and Alcohol Dependence, 2008, 57-68.
Spoth, Richard, Linda Trudeau, and Chungyeol Shin.  “Long-term effects of universal preventive interventions on prescription drug misuse.”  Addiction, 2008, vol. 103, no. 7, pp. 1160-1168.
Spoth, Richard L., Scott Clair, Chungyeol Shin, and Cleve Redmond.  “Long-term Effects of Universal Preventative Interventions on Methamphetamine Use Among Adolescents.”  Archives of Pediatric & Adolescent Medicine, 2006, vol. 160, pp.876-882.
Trudeau, Linda, Richard Spoth, Catherine Lillehoj, Cleve Redmond, and K.A.S. Wickrama, “Effects of a Preventive Intervention on Adolescent Substance Use Initiation, Expectancies, and Refusal Intentions.”  Prevention Science, vol. 4, no. 2, June 2003, pp. 109-122.
Spoth, Richard, Cleve Redmond, Linda Trudeau, and Chungyeol Shin, “Longitudinal Substance Initiation Outcomes for a Universal Preventive Intervention Combining Family and School Programs,” Psychology of Addictive Behaviors, vol. 16, no. 2, 2002, pp. 129-134.
 
Study 2 – New York State:
Griffin, Kenneth W., Gilbert J. Botvin, and Tracy R. Nichols.  “Effects of a school-based drug abuse prevention program for adolescents on HIV risk behaviors in young adulthood.”  Prevention Science, 2006, vol. 7, no. 2, pp. 103-112.
Griffin, Kenneth W., Gilbert J. Botvin, and Tracy R. Nichols.  “Long-term follow-up effects of a school-based drug abuse prevention program on adolescent risky driving.”  Prevention Science, 2004, vol. 5, pp. 207-212.
Botvin Gilbert J., Kenneth W. Griffin, Tracy Diaz, Lawrence M. Scheier, Christopher Williams, and Jennifer A. Epstein.  “Preventing illicit drug use in adolescents:  Long-term follow-up data from a randomized control trial of a school population.”  Addictive Behaviors, 2000, vol. 25, pp. 769-774.
Botvin, Gilbert J., Sharon Mihalic, and Jennifer Grotpeter (1998).  Blueprints for Violence Prevention, Book Five: LifeSkills Training.  Boulder, CO: Center for the Study and Prevention of Violence.  http://www.colorado.edu/cspv/blueprints/modelprograms/LST.html
Botvin, Gilbert J., Eli Baker, Linda Dusenbury, Elizabeth M. Botvin and Tracy Diaz.  “Long-term Follow-up Results of a Randomized Drug Abuse Prevention Trial in a White Middle-class Population.” JAMA, vol. 273, no. 1, April 12, 1995, pp. 1106-1112.
Botvin, Gilbert J., Eli Baker, Linda Dusenbury, Stephanie Tortu, and Elizabeth M. Botvin.  “Preventing Adolescent Drug Abuse Through a Multimodal Cognitive-Behavioral Approach:  Results of a 3-Year Study.”  Journal of Consulting and Clinical Psychology, vol. 58, no. 4, 1990, pp. 437-446.