Travis A R Cook

Effectiveness of a marijuana expectancy manipulation: Piloting the balanced-placebo design for marijuana.

Experimental and Clinical Psychopharmacology August 1, 2009 Jane Metrik, Damaris J Rohsenow, Peter M. Monti et al.

Although alcohol and nicotine administration studies have demonstrated that manipulating subjects' expectancies regarding drug content affects drug response, research with marijuana has not adequately studied drug expectancy effects. The present pilot study was the first to evaluate the credibility and effect of expectancy manipulation on subjective measures and smoking patterns using a...