Consumer Responses to Alcohol Warnings

February 9, 2024 updated by: Anna Grummon, Stanford University
The primary objective is to evaluate whether alcohol warnings about different topics elicit higher perceived message effectiveness than control messages. The secondary objective is to evaluate whether alcohol warnings about different topics elicit higher reactance than control messages.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Participants will complete a within-subjects online randomized experiment in which they will view and rate messages on the risk of alcohol consumption. Participants will view and rate 12 messages total: 10 warning messages and 2 control messages. They will rate each message on perceived message effectiveness (primary outcome) and message reactance (secondary outcome). The 10 warning messages will be about 5 different warning topics (i.e., 2 messages per topic) and the 2 control messages will be about 1 control topic (2 messages per topic). In this within-subjects experiment, the survey will present the topics in random order and the messages within each topic in random order.

Study Type

Interventional

Enrollment (Actual)

2522

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Palo Alto, California, United States, 94304
        • Online study

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age 21 and older
  • Reside in the United States
  • Able to complete a survey in English

Exclusion Criteria:

  • Under 21 years of age
  • Reside outside the United States
  • Unable to complete a survey in English

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Alcohol Messages
Participants view 12 messages: 10 messages related to health topics (2 messages for each of 5 randomly selected health topics from among all health topics) and 2 control messages.
Behavioral: Mouth cancer warning
Participants will view messages about the risk of mouth cancer from alcohol consumption.
Behavioral: Throat cancer warning
Participants will view messages about the risk of throat cancer from alcohol consumption.
Behavioral: Voice box (larynx) warning
Participants will view messages about the risk of voice box (larynx) cancer from alcohol consumption.
Behavioral: Esophagus cancer warning
Participants will view messages about the risk of esophagus cancer from alcohol consumption.
Behavioral: Liver cancer warning
Participants will view messages about the risk of liver cancer from alcohol consumption.
Behavioral: Colon and rectum cancer warning
Participants will view messages about the risk of colon and rectum cancer from alcohol consumption.
Behavioral: Breast cancer
Participants will view messages about the risk of breast cancer from alcohol consumption.
Behavioral: Cancer (generic, not site-specific)
Participants will view messages about the risk of cancer (not site-specific) from alcohol consumption.
Behavioral: Addiction and neurological changes
Participants will view messages about the risk of addiction and neurological changes from alcohol consumption.
Behavioral: Hypertension
Participants will view messages about the risk of hypertension from alcohol consumption.
Behavioral: Liver damage
Participants will view messages about the risk of liver damage from alcohol consumption.
Behavioral: Harm to fetus
Participants will view messages about the risk of harm to a fetus from alcohol consumption during pregnancy.
Behavioral: Dementia
Participants will view messages about the risk of dementia from alcohol consumption.
Behavioral: Impaired sleep
Participants will view messages about the risk of impaired sleep from alcohol consumption.
Behavioral: Drinking guidelines
Participants will view messages about guidelines for alcohol consumption.
Behavioral: Control
Participants will view neutral messages unrelated to the harms of alcohol consumption.
Behavioral: Road injuries
Participants will view messages about the risk of road injuries from alcohol consumption.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Perceived message effectiveness
Time Frame: The survey will take up to 20 minutes.
The study will assess perceived message effectiveness using 1 item: "How much does this message discourage you from wanting to drink alcohol?" Response options will range from "not at all" (coded as 1) to "a great deal" (coded as 5). Higher scores indicate more perceived message effectiveness.
The survey will take up to 20 minutes.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Reactance
Time Frame: The survey will take up to 20 minutes.
The study will assess reactance using 1 item: "Say how much you disagree or agree with this statement: This message exaggerates the health effects of alcohol." Response options will range from "strongly disagree" (coded as 1) to "strongly agree" (coded as 5). Higher scores indicate more reactance.
The survey will take up to 20 minutes.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Stanford University

Investigators

  • Principal Investigator: Anna Grummon, PhD, Assistant Professor

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 18, 2024

Primary Completion (Actual)

January 26, 2024

Study Completion (Actual)

January 26, 2024

Study Registration Dates

First Submitted

November 27, 2023

First Submitted That Met QC Criteria

December 5, 2023

First Posted (Actual)

December 7, 2023

Study Record Updates

Last Update Posted (Estimated)

February 13, 2024

Last Update Submitted That Met QC Criteria

February 9, 2024

Last Verified

February 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 71682

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Investigators will post de-identified individual participant data in a publicly available repository.

IPD Sharing Time Frame

Investigators will post IDP upon acceptance of any manuscripts associated with the data generated in this study.

IPD Sharing Access Criteria

Data and code will be publicly available.

IPD Sharing Supporting Information Type

  • SAP
  • ANALYTIC_CODE

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Alcohol Drinking

Clinical Trials on Mouth cancer warning

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Spain

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe