# Endocannabinoid System Research: Clinical Evidence > **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637) > **Publisher:** CED Clinic (https://cedclinic.com) > **Canonical URL:** https://cedclinic.com/rebuttal-based-social-norms-cannabis-intervention/ > **Published:** 2026-04-26T00:23:38-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T10:57:18-04:00 > **Clinical Summary:** Explore the rebuttal-based social norms tailored cannabis intervention for adolescents and its clinical evidence in cannabis prevention messaging. --- #### Clinical Takeaway Clinical Takeaway: Adolescents who initially resist cannabis prevention messages show better engagement and reduced use when prevention programs address their specific objections with targeted rebuttals before presenting additional information. Tailoring interventions to individual belief patterns and usage norms appears more effective than one-size-fits-all messaging approaches for cannabis-abstinent youth. ### #26 A Rebuttal-Based Social Norms-Tailored Cannabis Intervention for At-Risk Adolescents. **Citation:** Donaldson Candice D et al. *A Rebuttal-Based Social Norms-Tailored Cannabis Intervention for At-Risk Adolescents.* Prevention science: the official journal of the Society for Prevention Research. 2021. PMID: 33791930. **Study type:** Journal Article, Randomized Controlled Trial, Research Support, N.I.H., Extramural  |  **Topic area:** Pediatrics  |  **CED Score:** 10 Design: 5 Journal: 0 N: 3 Recency: 0 Pop: 3 Human: 1 Risk: -2 **Quality Gate Alerts:** - Preclinical only **Abstract:** Many past cannabis prevention campaigns have proven largely ineffective due in part to the diversity of adolescents’ cannabis-relevant beliefs. The current studies evaluated the impact of a sequential multiple message approach tailored to the usage norms of adolescents expressing negative attitudes toward a cannabis prevention appeal. A multiple-message strategy was implemented-initial unfavorable message evaluations were invalidated using attitudinal rebuttal feedback prior to presenting a third tailored communication. Participants were cannabis-abstinent middle and high school students (ages 11 to 16). Study 1 (N = 808) compared effects of gain- and loss-framed messages tailored to each student’s normative usage perceptions. In Study 2 (N = 391), students were randomly assigned to receive a tailored or non-tailored message after receiving feedback meant to destabilize anti-message attitudes. For at-risk adolescents in Study 1 who perceived [cannabis use](https://cedclinic.com/cannabis-cardiovascular-health-insights-2024/) as normative, a tailored gain-framed message resulted in the lowest usage intentions (p < .05). In Study 2, a conditional multiple-moderated mediation model showed that for high-risk teens with normative beliefs and pro-cannabis attitudes, exposure to a tailored gain-framed communication was associated with decreased cannabis attitude certainty, and lower usage intentions 2 months later (p < .05). Findings have implications for sequential messaging utilization in mass media campaigns and support the efficacy of tailored messages over a one-size-fits-all media approach. Further, results suggest that systematically weakening resistance to persuasive communications and tailoring messages consistent with individually perceived peer norms is an effective prevention strategy.  |   |  [View on PubMed ↗](https://pubmed.ncbi.nlm.nih.gov/33791930/)[Full Text ↗](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8257086/)[DOI ↗](https://doi.org/10.1007/s11121-021-01224-9) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) Physician-Led, Whole-Person Care A doctor who takes the time to truly understand you. Personal care that starts with listening and is guided by experience and ingenuity. 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[Explore Now](https://cedclinic.com/sequential-cannabis-prevention-messaging-teens/) [Cannabinoid Clinical Trials: Cannabis Interventions for Teens](https://cedclinic.com/cannabis-interventions-for-teens/) [Clinical trial findings](https://cedclinic.com/cannabidiol-sleep-wake-cycle-study-no-acute-effects/) on various cannabis interventions targeting teen populations. [Learn More](https://cedclinic.com/cannabis-interventions-for-teens/) Have thoughts on this? 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