Impulsivity, negative expectancies, and marijuana use: A test of the acquired preparedness model

According to the ‘acquired preparedness model,’ expectancies mediate the relationship between an impulsive personality style and alcohol use. The current study evaluated whether the model can also be applied to marijuana use. Estimated probabilities and subjective evaluations of personally expected...

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Bibliographic Details
Published in:Addictive behaviors 2005-06, Vol.30 (5), p.1071-1076
Main Authors: Vangsness, Laura, Bry, Brenna H., LaBouvie, Erich W.
Format: Article
Language:English
Subjects:
Adult
Age Factors
Attitude to Health
Drug use
Emotions
Female
Humans
Impulsive Behavior - psychology
Impulsivity
Male
Marijuana
Marijuana Abuse - psychology
Marijuana use
Models, Psychological
Negative expectancies
Personality
Personality traits
Sex Factors
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Summary:According to the ‘acquired preparedness model,’ expectancies mediate the relationship between an impulsive personality style and alcohol use. The current study evaluated whether the model can also be applied to marijuana use. Estimated probabilities and subjective evaluations of personally expected marijuana effects, along with impulsivity and frequency of marijuana use, were assessed in 337 college undergraduates. Tests of mediation examining positive and negative marijuana expectancies showed negative expectancies to be a significant mediator for both males and females. That is, participants who were higher on impulsivity had fewer negative expectancies and in turn used more marijuana. This study provides evidence that the acquired preparedness model may help to explain marijuana use.
ISSN:0306-4603
1873-6327
DOI:10.1016/j.addbeh.2004.11.003