U.S., July 14 -- ClinicalTrials.gov registry received information related to the study (NCT07699198) titled 'Developing and Strengthening Cannabis Warnings: Warning Message Testing' on June 25.
Brief Summary: The purpose of this activity is to identify promising cannabis warning messages from different themes. Participants will be adults who live in the United States, including both people who use cannabis and those who do not use cannabis. In an online within-subjects experiment, participants will be randomly assigned to view 7 cannabis warning messages from different themes developed as part of previous study activities. After viewing each cannabis warning message, participants will rate the message on awareness, clarity, believability, ...