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ABSTRACT
Objectives: The present study tested whether coping motives for cannabis use moderate the effect of negative expectancies on cannabis use. Methods: Participants were 149 (36.2% female, 61.59% non-Hispanic Caucasian) current cannabis users aged 18-36 (M = 21.01, SD = 3.09) who completed measures of cannabis-related expectancies and motives for use. Hierarchical multiple regressions were employed to investigate the predictive value of the interaction between negative expectancies and coping motives on cannabis use outcomes. Results: Results revealed interactions between negative expectancies and coping motives with respect to past 90 day cannabis use frequency and cannabis problems. Global negative effects expectancies were associated with less frequent cannabis use, particularly among those with fewer coping motives. However, negative expectancies were related to more cannabis problems, particularly among those with higher coping motives. Conclusions: These results suggest it may be advisable to take coping motives into account when addressing expectancies among cannabis users.
Acknowledgments
This study was approved by the institutional review board. Dawn Foster conducted statistical analysis and worked with Julia Buckner and Emily Jeffries to draft the manuscript. Julia Buckner conceptualized theoretical bases of the grant and oversaw data collection. Michael Zvolensky provided guidance, feedback, and support to the grant and to development of manuscript drafts. All authors contributed to and have approved the final manuscript.
Declaration of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the article.
Funding
Funding for this study was provided in part by grants from the National Institute of Drug Abuse (5R21DA029811-02, 1R34DA031937-01A1, K12-DA-000167). NIDA had no further role in study design; in the collection, analysis and interpretation of data; in the writing of the manuscript; or in the decision to submit the manuscript for publication.
Additional information
Notes on contributors
Dawn W. Foster
Dawn W. Foster is an Assistant Professor in the Psychiatry Department at Yale University's School of Medicine. Her work focuses on social psychological principles related to substance misuse and addictive behaviors.
Emily R. Jeffries
Emily R. Jeffries is a graduate student in the Clinical Psychology Training Program at Louisiana State University. Her research interests focus on transdiagnostic cognitive vulnerability factors related to anxiety and substance use disorders.
Michael J. Zvolensky
Michael J. Zvolensky is the Hugh Roy and Lillie Cranz Cullen Distinguished University Professor and Director of the Anxiety and Health Research Laboratory and Substance Use Treatment Clinic (AHRL-SUTC) at the University of Houston (UH) and a research Professor at MD Anderson Cancer Center at The University of Texas.
Julia D. Buckner
Julia D. Buckner is an Associate Professor of Psychology and director of the LSU Anxiety and Addictive Behaviors Research Laboratory and Clinic at Louisiana State University. Her work focuses on understanding the nature and treatment of anxiety disorders, with a particular interest in the relations between anxiety and addictive behaviors.