Developing and Strengthening Cannabis Warnings: Warning Message Testing
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of North Carolina, Chapel Hill
About this trial
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.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Age 18 years of age and older
Live in the United States
Disqualifiers
Age less than 18 years of age
Does not live in the United States
Trial design
Design model
Single group
Treatments tested in this trial
Constituents
BehavioralParticipants will view and rate a message about constituents.
Cognitive Functioning
BehavioralParticipants will view and rate a message about cognitive functioning.
Cardiovascular Health
BehavioralParticipants will view and rate a message about cardiovascular health.
Motor Vehicle Crashes
BehavioralParticipants will view and rate a message about motor vehicle crashes.
Dependence
BehavioralParticipants will view and rate a message about dependence.
Psychosis and Schizophrenia
BehavioralParticipants will view and rate a message about psychosis and schizophrenia.
Mental Health
BehavioralParticipants will view and rate a message about mental health.
Reproductive Health
BehavioralParticipants will view and rate a message about reproductive health.
Respiratory Health
BehavioralParticipants will view and rate a message about respiratory health.
Edibles
BehavioralParticipants will view and rate a message about edibles.
Cannabis Hyperemesis Syndrome
BehavioralParticipants will view and rate a message about cannabis hyperemesis syndrome.
Control
BehavioralParticipants will view and rate a control message.
Treatment groups
1,500 Participants
are divided into 1 treatment groupGroup A: Cannabis warning messagesExperimental treatment 12 interventions
Trial outcomes
Primary outcomes
1
Cognitive Elaboration
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.
Time frame
Baseline (one time online survey)Secondary outcomes
1
Perceived Message Effectiveness
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.
Time frame
Baseline (one time online survey)Other outcomes
1
Clarity
This survey item assesses the extent to which a participant feels that the message is clear. Response options are on a 5-point scale from 5='Very clear' to 1='Not clear at all' with higher scores indicating that a message is more clear.
Time frame
Baseline (one time online survey)2
Believability
This survey item assesses the extent to which a participant feels that the message is believable. Response options are on a 5-point scale from 5='Very believable' to 1='Not at all believable' with higher scores indicating that a message is more believable.
Time frame
Baseline (one time online survey)3
Reactance
This survey item assesses reactance in terms of how much a participant is annoyed by the message. Response options are on a 5-point scale from 5='A great deal' to 1='Not at all' with higher scores indicating higher reactance to the message.
Time frame
Baseline (one time online survey)Sponsors and contacts
Click on the lead sponsor to view all of their trials.
University of North Carolina, Chapel Hill
Lead sponsor
National Institute on Drug Abuse (NIDA)
Collaborator
Source ClinicalTrials.gov
This trial is not recruiting at the moment. You can still explore other options: