Testing Warning Labels for Retail Cannabis Products

This study is testing different designs for warning labels on retail cannabis products. We want to understand how variations in cannabis packaging and health warnings affect people's reactions and their intentions to use cannabis. The goal is to find the most effective health warning features to help consumers understand the risks of cannabis. You may be able to join if you are 21 or older, speak English, have used cannabis in the last 30 days, and live in a U.S. state where retail cannabis is legal. We are looking for about 450 participants. The study is currently unclear on its recruitment status.

Study design
This is an interventional study involving a discrete choice experiment (DCE) survey. Approximately 450 participants will be randomly assigned to view different combinations of cannabis packaging and warning labels.
What's involved
You will complete a self-administered online questionnaire, which is expected to take about 15 minutes.
Compensation
Not stated in the trial record.
Follow-up
Your risk perceptions and cannabis product use intentions will be measured at the time of survey completion (approximately 15 minutes).

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NCT07701304

Testing Warning Labels for Retail Cannabis Products Using a Discrete Choice Experiment

Recruiting
NAAges 21+InterventionalPrevention
University of Oklahoma
~450 participants
Updated 2026-07-27 on ClinicalTrials.gov
What's tested:Discrete choice experiment (DCE) survey-experiment

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Risk perceptions about cannabis products
Measured over At the time of survey completion (approximately 15 minutes)
+1 more outcome measured
Cannabis Use
Risk Perception
Decision Making
1 sites across 1 states
Oklahoma1
  • Zachary Massey, PhD · PRINCIPAL_INVESTIGATOR · University of Oklahoma

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  • Risk perceptions about cannabis productsAt the time of survey completion (approximately 15 minutes)

    Binary measure using best-worst scaling. For each question, participants will also have the option of indicating none of the above/opt-out as a response. For each choice set, the statement selected as the best option will be coded using a value of 1, and the worst will be coded as -1. The remaining statements in that set will be coded as 0. If the participant selects none of the above, all statements in that choice set will be assigned a value of 0.

  • Cannabis product use intentionsAt the time of survey completion (approximately 15 minutes)

    Binary measure using best-worst scaling. For each question, participants will also have the option of indicating none of the above/opt-out as a response. For each choice set, the statement selected as the best option will be coded using a value of 1, and the worst will be coded as -1. The remaining statements in that set will be coded as 0. If the participant selects none of the above, all statements in that choice set will be assigned a value of 0.