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The development of a Cannabis Knowledge Assessment Tool (CKAT)

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  • Ava Bayat
  • Holly Mansell
  • Jeff Taylor
  • Michael Szafron
  • Kerry Mansell

Abstract

Background: Misconceptions about the health risks of cannabis remain prevalent, indicating the need to improve public health messaging and determine the effectiveness of educational programming. Our objective was to develop a standardized questionnaire to measure knowledge about cannabis in the context of cannabis legalization. Methods: A Cannabis Knowledge Assessment Tool (CKAT) was created using the Delphi method. A purposive sample of healthcare professionals, policymakers, academics, patients, and students served as the content and development experts. Principal component analysis from the codes identified from open-ended feedback guided the item development. Upon completion, the CKAT was administered as a pre- and post-test in four schools (7th and 9th Grade) in Canada. The data were analysed to determine whether knowledge scores changed after participating in a cannabis education program. Results: Twenty-four experts initially participated in the Delphi process and 18 (75% retention) continued throughout. Principal component analysis identified 3 domains: 1) effects of cannabis on the individual, 2) general information about cannabis, and 3) cannabis harm reduction. The final questionnaire consisted of 16 multiple-true-false questions (64 items) and received a Flesch-Kincaid Grade Level of 6.3, and a SMOG index score of 7.6. The CKAT was completed by 132 students; seventy-three 7th grade and fifty-nine 9th grade students. The baseline mean CKAT score was 46.2 (SD:5.5), which increased to 50.7 (SD:4.6) after the cannabis educational program (p

Suggested Citation

  • Ava Bayat & Holly Mansell & Jeff Taylor & Michael Szafron & Kerry Mansell, 2023. "The development of a Cannabis Knowledge Assessment Tool (CKAT)," PLOS ONE, Public Library of Science, vol. 18(9), pages 1-12, September.
    • Handle: RePEc:plo:pone00:0291113
    DOI: 10.1371/journal.pone.0291113
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    References listed on IDEAS

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    1. Cox, Chelsea, 2018. "The Canadian Cannabis Act legalizes and regulates recreational cannabis use in 2018," Health Policy, Elsevier, vol. 122(3), pages 205-209.
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