The Alberta Alcohol and Drug Abuse Commission (AADAC) conducted the Alberta Youth Experience Survey (TAYES) in 2002, 2005 and 2008 to measure  youth behaviour in relation to alcohol and drug use.
The results of this research can be found at:
http://www.albertahealthservices.ca/2382.asp

Click to review Health Canada's Preventing Substance Abuse Among Young People: A Compendium of Best Practices

In 2007, the Drug and Organized Crime Awareness Service (D.O.C.A.S.) of the R.C.M.P.  Conducted a national client survey to evaluate community perceptions of the D.A.R.E. Program. 

Click to review the abstract or the full report.

Link to Narconon.org