Developing and Strengthening Cannabis Warnings: Warning Message Testing
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Constituents, Cognitive Functioning, Cardiovascular Health, Motor Vehicle Crashes.
- Who it may be relevant to
- Registry conditions: Cannabis, Marijuana Use. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
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, cognitive elaboration, perceived message effectiveness, and reactance. The survey will take 15-20 minutes.
Detailed description
The purpose of this activity is to identify promising cannabis warning messages from different themes.
Setting: An online survey of adults who live in the United States.
Participants: An estimated N=1500 adults who live in the United States, including both people who use cannabis and those who do not use cannabis. Participants will be recruited by Qualtrics Services. Participants who are eligible for the study will view a consent form as part of the survey and check a box to indicate that they agree to participate in the study. Once the participant has completed consent, they will be able to begin the survey.
Procedures: Participants will complete a within-subjects experiment in which they view and rate cannabis warning messages from different themes. Participants will be screened for inclusion and answer questions on demographic information and susceptibility to cannabis use. Participants will then 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, cognitive elaboration, perceived message effectiveness, and reactance. There will be a total of 11 warning themes plus control. After viewing and rating their assigned cannabis warning messages, participants will answer additional questions about cannabis risk perceptions and use behavior (if applicable), additional demographic information, and about their use of tobacco and alcohol. The survey will take 15-20 minutes.
Interventions
- Behavioral Constituents
Participants will view and rate a message about constituents. - Behavioral Cognitive Functioning
Participants will view and rate a message about cognitive functioning. - Behavioral Cardiovascular Health
Participants will view and rate a message about cardiovascular health. - Behavioral Motor Vehicle Crashes
Participants will view and rate a message about motor vehicle crashes. - Behavioral Dependence
Participants will view and rate a message about dependence. - Behavioral Psychosis and Schizophrenia
Participants will view and rate a message about psychosis and schizophrenia. - Behavioral Mental Health
Participants will view and rate a message about mental health. - Behavioral Reproductive Health
Participants will view and rate a message about reproductive health. - Behavioral Respiratory Health
Participants will view and rate a message about respiratory health. - Behavioral Edibles
Participants will view and rate a message about edibles.
Primary outcome measures
- Cognitive Elaboration [Time frame: Baseline (one time online survey)]
Secondary outcome measures (1)
- Perceived Message Effectiveness [Time frame: Baseline (one time online survey)]
Eligibility criteria
Inclusion criteria
- Age 18 years of age and older
- Live in the United States
Exclusion criteria
- Age less than 18 years of age
- Does not live in the United States
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Prevention
Study locations
United States · 1 center
- University of North Carolina at Chapel Hill — Chapel Hill
Identifiers
NCT: NCT07699198 · 24-1616 · R01DA058003