"The community treatment parameter estimate was significant (?=?0.51, p=0.026), indicating that community-level treatment lowered the propensity to use marijuana at the last measurement occasion over and above the effect of the 'Above the Influence' campaign. There was no evidence that school-level treatment affected the marijuana use at the last measurement occasion. Neither the community-level nor the school-level treatment for the 'Be Under Your Own Influence' campaign provided evidence of an effect on the linear rate-of-change for marijuana use.
just say no
"The extent of exposure to the ONDCP 'Above the Influence' campaign (RQ1) was assessed by cross-tabulating the measures of self-reported exposure to this campaign with each of the four treatment/control cells at the fourth wave of data collection, the point by which such exposure would have taken place for all study participants. Of youth in the control community/control school cell, 73% said they definitely had seen the ONDCP 'Above the Influence' campaign. The self-reported exposure to the ONDCP campaign was similar in the three treatment cells (68–79%).
"A well-designed and executed multiyear study of the impact of the ONDCP [Office of National Drug Control Policy] anti-drug media campaign on teen initiation of drug use, or cessation of drug use, shows disappointing results for the campaign. The study provides no evidence that the campaign had a positive effect in relation to teen drug use, and shows some indications of a negative impact."
Regarding exposure to ONDCP's National Anti-Drug Media Campaign and marijuana use by 12-18 year olds, a report prepared for NIDA by Westat and the Annenberg School of Communication determined: "In sum, the data do not support claims of favorable Campaign influence on any of the four original cognitive outcomes.