Cannabis, Marijuana Use
Conditions
Keywords
Cannabis, Marijuana Use, Product Packaging, Product Labeling, Warnings, Health Communication
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, 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
BEHAVIORALConstituents
Participants will view and rate a message about constituents.
BEHAVIORALCognitive Functioning
Participants will view and rate a message about cognitive functioning.
BEHAVIORALCardiovascular Health
Participants will view and rate a message about cardiovascular health.
BEHAVIORALMotor Vehicle Crashes
Participants will view and rate a message about motor vehicle crashes.
BEHAVIORALDependence
Participants will view and rate a message about dependence.
BEHAVIORALPsychosis and Schizophrenia
Participants will view and rate a message about psychosis and schizophrenia.
BEHAVIORALMental Health
Participants will view and rate a message about mental health.
BEHAVIORALReproductive Health
Participants will view and rate a message about reproductive health.
BEHAVIORALRespiratory Health
Participants will view and rate a message about respiratory health.
BEHAVIORALEdibles
Participants will view and rate a message about edibles.
BEHAVIORALCannabis Hyperemesis Syndrome
Participants will view and rate a message about cannabis hyperemesis syndrome.
BEHAVIORALControl
Participants will view and rate a control message.
Sponsors
University of North Carolina, Chapel Hill
National Institute on Drug Abuse (NIDA)
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Cognitive Elaboration | Baseline (one time online survey) | A one item measure of cognitive elaboration to assess how much a message makes the participant think about the health risks of cannabis. Response options are on a 5-point scale from 5='A great deal' to 1= 'Not at all', with higher scores indicating higher cognitive elaboration. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Perceived Message Effectiveness | Baseline (one time online survey) | This survey item assesses perceived message effectiveness in terms of how concerned the message makes the participant feel about the health effects of using cannabis. Response options are on a 5-point scale from 5='A great deal' to 1='Not at all' with higher scores indicating higher perceived message effectiveness. |
Countries
United States
Contacts
CONTACTSarah D Kowitt, PhD, MPH
PRINCIPAL_INVESTIGATORSarah D Kowitt, PhD, MPH
University of North Carolina, Chapel Hill
PRINCIPAL_INVESTIGATORLeah M Ranney, PhD, MA
University of North Carolina, Chapel Hill
Outcome results
None listed