Objective-To assess perceived implementation of 2 substance-abuse prevention programs: a standard one and a peer-led interactive one.Methods-Data from 16 health educators were collected after 504 classroom sessions, 63 of which were observed by 24 monitors.Results-In the interactive program, health educators (HEs) followed the curriculum less closely, reported less favorable classroom processes and less off-task talking than in the standard one.Conclusions-These data indicate that an interactive substance-abuse prevention program does not necessarily entail more off-task discussion but also does not necessarily guarantee more favorable program implementation.Keywords substance use; process evaluation; schools; prevention Project Towards No Drug Abuse (TND) is a school-based curriculum designed to motivate youth to change their perspectives on and perceptions of drug use, learn social and life skills to bond to prosocial institutions, and learn decision making to help them plan good solutions to complex, problem situations. 1 A one-year follow-up study of TND has shown decreased use of cigarettes, alcohol, marijuana, hard drugs, and weapons carrying. 2 Effects on cigarette smoking, hard drug use, and marijuana use (the latter, among male nonusers at baseline) were also maintained at 2-year follow-up. 3 Address correspondence to Dr Valente, Department of Preventive Medicine, School of Medicine, University of Southern California, 1000 S. Fremont Avenue, Building A Room 5133, Alhambra CA 91803. tvalente@usc.edu.
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Author ManuscriptAm J Health Behav. Author manuscript; available in PMC 2011 July 12.Published in final edited form as: Am J Health Behav. 2007 ; 31(3): 297-311. doi:10.5555/ajhb.2007.31.3.297. NIH-PA Author Manuscript NIH-PA Author Manuscript NIH-PA Author Manuscript TND, and many other substance abuse prevention programs, have been created and implemented with limited success perhaps because they have not adequately incorporated the power and influence of peer social networks. Social networks have been shown repeatedly to be a significant covariate of adolescent substance use. [4][5][6][7] Most programs, however, incorporate peer influence factors only tangentially, primarily through role modeling and resistance-skills training. [8][9][10][11] Our prior work with a tobacco prevention program showed that using network information to structure a school-based tobacco prevention program increased its effectiveness. 11,12 The statistical analysis revealed a program by network interaction such that the network condition, peers assigned to groups based on their social networks, was more effective in the culturally tailored curriculum than in the traditional social-influences one. Specifically, the culturally tailored program was effective in preventing smoking if students participated in the activities in groups composed of their social network members. However, a traditional social-influences program did not appear to be more effective when students participated in groups with their ...