The influence of marijuana expectancy change on drug use in adolescence

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  • March 20, 2019
Creator
  • Haroon, Maleeha
    • Affiliation: College of Arts and Sciences, Department of Psychology and Neuroscience
Abstract
  • The current study examined whether change in marijuana outcome expectancies following initial marijuana use mediated the risk conveyed by early marijuana use on future substance use behaviors. Additionally, the study investigated whether the peer context moderated this pathway. The study utilized a longitudinal data set to examine responses from 1,685 adolescents. Results indicated that both initiation of marijuana use and positive change in marijuana expectancies predicted more frequent future marijuana use and that marijuana expectancy change was a significant mediator of the relation between initiation of marijuana use and future marijuana use. Marijuana expectancy change was also a significant mediator of the relation between initial marijuana use and future expectations of using other drugs. The peer context also emerged as a significant mediator of the relation between marijuana use initiation and marijuana expectancy change. Potential explanations and implications of these findings are considered.
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  • In Copyright
Advisor
  • Ennett, Susan
  • Prinstein, Mitchell J.
  • Hussong, Andrea
Degree
  • Master of Arts
Degree granting institution
  • University of North Carolina at Chapel Hill Graduate School
Graduation year
  • 2016
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