Impacts of Alcohol Warning Labels: An Online Experiment
NCT ID: NCT06442800
Last Updated: 2025-08-15
Study Results
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View full resultsBasic Information
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COMPLETED
NA
1123 participants
INTERVENTIONAL
2024-09-25
2024-10-14
Brief Summary
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Which warning topics make alcohol consumers in the US want to drink less alcohol? Which warning topics remind alcohol consumers in the US of alcohol's harms? Which warning topics help alcohol consumers in the US learn something new? There will be a total of 20 alcohol messages, 2 messages for each of the 10 topics. For each topic, participants will be randomly assigned to 1 of the 2 messages so that they view a total of 10 alcohol messages. All 10 messages will be shown in random order. Participants will rate each message on how much it makes them want to drink less alcohol, reminds them that drinking can be harmful, and teaches them something new.
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Detailed Description
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Participants will complete a within-subjects online randomized experiment in which they view and rate messages shown on alcohol containers. Participants will rate each message on perceived message effectiveness (primary outcome), reminding of alcohol's harms (secondary outcome), and learning something new (secondary outcome). These tasks will be repeated for 10 messages, each with a different topic. There will be 9 warning topics (i.e., topics about alcohol's harms) and 1 control topic (i.e., neutral topic not about alcohol's harms). In this within-subjects experiment, the survey will present the topics in random order and participants will view 1 of 2 messages for each topic.
Conditions
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Study Design
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NA
SINGLE_GROUP
PREVENTION
NONE
Study Groups
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Alcohol Messages
Participants will view and rate 10 messages shown on alcohol containers.
Liver Cancer
Participants will view messages about the risk of liver cancer from alcohol consumption.
Throat and Mouth Cancer
Participants will view messages about the risk of throat and mouth cancer from alcohol consumption.
Colorectal Cancer
Participants will view messages about the risk of colorectal cancer from alcohol consumption.
Multiple Cancers
Participants will view messages about the risk of multiple cancers from alcohol consumption.
Liver Disease
Participants will view messages about the risk of liver disease from alcohol consumption.
Hypertension
Participants will view messages about the risk of hypertension from alcohol consumption.
Dementia
Participants will view messages about the risk of dementia from alcohol consumption.
Drinking Guidelines
Participants will view messages about guidelines for alcohol consumption.
Current Warning
Participants will view the current warning that is required on most alcoholic beverage containers sold in the US.
Control
Participants will view neutral messages unrelated to the harms of alcohol consumption.
Interventions
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Liver Cancer
Participants will view messages about the risk of liver cancer from alcohol consumption.
Throat and Mouth Cancer
Participants will view messages about the risk of throat and mouth cancer from alcohol consumption.
Colorectal Cancer
Participants will view messages about the risk of colorectal cancer from alcohol consumption.
Multiple Cancers
Participants will view messages about the risk of multiple cancers from alcohol consumption.
Liver Disease
Participants will view messages about the risk of liver disease from alcohol consumption.
Hypertension
Participants will view messages about the risk of hypertension from alcohol consumption.
Dementia
Participants will view messages about the risk of dementia from alcohol consumption.
Drinking Guidelines
Participants will view messages about guidelines for alcohol consumption.
Current Warning
Participants will view the current warning that is required on most alcoholic beverage containers sold in the US.
Control
Participants will view neutral messages unrelated to the harms of alcohol consumption.
Eligibility Criteria
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Inclusion Criteria
* Reside in the United States
* Able to complete a survey in English
* Consumed alcohol at least once per week during the past 4 weeks
Exclusion Criteria
* Reside outside of the United States
* Unable to complete a survey in English
* Consumed alcohol less than once per week during the past 4 weeks
21 Years
ALL
Yes
Sponsors
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National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
University of North Carolina, Chapel Hill
OTHER
Responsible Party
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Principal Investigators
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Marissa Hall, PhD
Role: PRINCIPAL_INVESTIGATOR
University of North Carolina, Chapel Hill
Anna Grummon, PhD
Role: PRINCIPAL_INVESTIGATOR
Stanford University
Locations
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University of North Carolina
Chapel Hill, North Carolina, United States
Countries
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Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Document Type: Informed Consent Form
Other Identifiers
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23-1218a
Identifier Type: -
Identifier Source: org_study_id
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