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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Drug Alcohol Depend. 2009 Feb 13;102(1-3):35–40. doi: 10.1016/j.drugalcdep.2008.12.010

Fig. 1.

Fig. 1

Mean scores for Factor 1 (compulsivity), Factor 2 (emotionality), Factor 3 (expectancy), and Factor 4 (purposefulness) of the Marijuana Craving Questionnaire-Short Form as a function of self-reported frequency of daily craving episodes (top panel) and duration of average craving episode (bottom panel) during the past week. Filled symbols indicate a significant (p < 0.05) difference from zero.