ArticleDrug and alcohol dependence2025
Cannabis expectancies mediate the association between social media use and cannabis experimentation in early adolescents: A prospective cohort study.
Article in Drug and alcohol dependence, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
1 citing paper in PubMed.
- Scrolling into substance use: Social media use frequency and substance use among U.S. high school students.Drug and alcohol dependence reports · 2026Article
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Authors and funding
12 authors.
Funding
Abstract
backgroundSocial media exposure may influence early cannabis use behaviors in adolescents, potentially increasing the risk of future problematic use. Minimal prior research has investigated the role of cannabis expectancies (i.e., beliefs about the anticipated positive or negative effects of cannabis) and their role in mediating cannabis use initiation in early adolescence.
objectiveTo examine the prospective association between social media use and cannabis experimentation in a diverse U.S. sample of early adolescents, and to determine the extent to which cannabis expectancies mediate this relationship.
methodsWe utilized longitudinal data from the Adolescent Brain Cognitive Development Study (N = 7691, mean age 12.0 at Year 2 follow-up, 2018-2020) to estimate associations between daily social media time (Year 2) and cannabis use outcomes (Year 4) using sequential modeling approaches, adjusting for confounders including friends' cannabis use, and testing cannabis expectancies (Year 3) as a mediator.
resultsSocial media time (Year 2) was significantly associated with cannabis experimentation (Year 4) (B = 0.18, 95 % CI: 0.13-0.24, p < 0.001). At Year 3, positive cannabis expectancies predicted higher likelihood of experimentation one year later, while negative expectancies predicted lower likelihood. Positive cannabis expectancies mediated 19.8 % and negative cannabis expectancies mediated 13.6 % of the social media-cannabis use association.
conclusionsGiven the association between social media exposure on cannabis use and the mediating role of expectancies for adolescents, future research may explore interventions that limit both social media time and address expectancies to prevent early initiation of cannabis use.
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