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. 2020 May 18;2:18. doi: 10.1186/s42238-020-00023-3

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — Mediation analysis of attitudes, knowledge, and cannabis use in adult athletes. Effects are standardized coefficients. The X to M path is the effect of knowledge about cannabis on attitudes toward cannabis. Attitudes is coded as 1 = Conservative, 2 = Unsure, 3 = Unsure; Conservative is the comparison group. Knowledge is continuous 0–4. The M to Y path is the effect of attitudes toward cannabis on cannabis use. Cannabis use is coded as: 1 = Never use, 2 = Past Use, 3 = Current Use. The Direct effect is the effect of knowledge on use adjusted for attitudes. The Total effect is the effect of knowledge on use without considering attitudes