Research shows average joint contains much less marijuana than thought

Monday, July 11, 2016 - 16:21 in Psychology & Sociology

How much marijuana does the average joint contain? “It seems like an odd question but major policy questions depend on the answer,” said Greg Ridgeway, an associate professor of criminology and statistics at the University of Pennsylvania. Until now, there’s been no consensus. Previous research suggested a single joint held anywhere from 0.3 to 0.75 […]

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