Quote:
Originally Posted by peter12
That's interesting, and would appear to support your position. I do note that the authors admit their sample, and survey procedures invalidate their results from being compared with previous surveys. That is certainly a strike against.
When taking a deeper look, it appears that peaks and troughs are strongly correlated with the availability of drugs. I remember reading that the coffee shops serving marijuana had been greatly reduced around the time your study was written. It appears that I was correct.
http://www.parl.gc.ca/Content/SEN/Co...ion/korf-e.htm
"The most recent survey on drug use in the general population was conducted in 2009. However, due to methodological changes, the data are not comparable with those of previous surveys (1997, 2001 and 2005). Hence, recent trends cannot be described. - See more at: http://www.drugwarfacts.org/cms/The+....GpssTGiB.dpuf
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I will say that I open to the idea that you're right, but I think the two-year sample size in Colorado and the methodology used is hardly conclusive. I would have liked to see what the averages were like by month. Was there an immediate spike post-legalization and then a steady reversion, or has it been an increasing acceleration.