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Eliciting Perceived Norms About Substance Use

Eliciting Perceived Norms About Substance Use

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04833972
Enrollment
1531
Registered
2021-04-06
Start date
2021-02-10
Completion date
2022-08-15
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alcohol Drinking, Tobacco Use

Brief summary

Survey experiment to elicit perceived norms about substance use

Detailed description

Health behaviors and health risk behaviors are known to be associated with the extent to which one perceives these behaviors as normative. The canonical example of this phenomenon is taken from the U.S. literature, which has robustly shown that undergraduate students on college campuses tend to drink more heavily and frequently if they believe their classmates drink heavily and frequently, irrespective of their classmates' actual levels and frequency of use. However, there remains little systematic understanding about the best ways to elicit these perceived norms through survey-based research studies. This randomized survey experiment compares different ways of eliciting perceived norms.

Interventions

Each version of the questionnaire has the same questions about perceived norms about substance use in the community but differs in how the response options are offered.

Sponsors

Massachusetts General Hospital
Lead SponsorOTHER
Mbarara University of Science and Technology
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
DOUBLE (Subject, Outcomes Assessor)

Masking description

Study participants are randomly assigned to be read survey questions with slight changes in the wording of the response options. Neither study participants nor outcomes assessors are provided with information about "treatment" assignment.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* All adults who consider Nyakabare their primary place of residence and who are capable of providing consent

Exclusion criteria

* Minors younger than 18 years of age, with the exception of emancipated minors * Persons who do not consider Nyakabare Parish their primary place of residence, e.g., persons who happen to be visiting Nyakabare at the time of the survey or who own a home in Nyakabare but spend most of their time outside the parish * Persons with psychosis, neurological damage, acute intoxication, or other cognitive impairment (all of which are determined informally in the field by non-clinical research staff in consultation with a supervisor)

Design outcomes

Primary

MeasureTime frameDescription
Perception of Tobacco Use Frequency Among MenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most men in your cell in this parish smoked cigarettes four or more times per week in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Tobacco Use Frequency Among WomenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most women in your cell in this parish smoked cigarettes four or more times per week in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Use Frequency Among MenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most men in your cell in this parish taken alcohol four or more times per week in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Use Frequency Among WomenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most women in your cell in this parish taken alcohol four or more times per week in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol-Related Blackouts Among MenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 30 days)"According to your perception, have most men in your cell in this parish been unable to remember what happened the night before at least once as a result of them taking alcohol in the past 30 days?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol-Related Blackouts Among WomenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 30 days)"According to your perception, have most women in your cell in this parish been unable to remember what happened the night before at least once as a result of them taking alcohol in the past 30 days?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol-Related Spousal Problems Among MenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 30 days)"According to your perception, have most men in your cell in this parish quarreled after taking alcohol with their spouse or main partner if they have one in the past 30 days?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol-Related Spousal Problems Among WomenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 30 days)"According to your perception, have most women in your cell in this parish quarreled after taking alcohol with their spouse or main partner if they have one in the past 30 days?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Intoxication Among MenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 30 days)"According to your perception, have most men in your cell in this parish experienced drunkenness or intoxication on 3 or more days in the past 30 days?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Intoxication Among WomenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 30 days)"According to your perception, have most women in your cell in this parish experienced drunkenness or intoxication on 3 or more days in the past 30 days?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Use Financial Harms Among MenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most men in your cell in this parish had a harmful effect on their household's finances due to them taking alcohol in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Use Financial Harms Among WomenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most women in your cell in this parish had a harmful effect on their household's finances due to them taking alcohol in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Spending Among MenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most men in your cell in this parish spent more than 35,000 USh on any kind of alcohol in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Spending Among WomenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most women in your cell in this parish spent more than 35,000 USh on any kind of alcohol in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Binge Use Frequency Among MenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most men in your cell in this parish taken 6 or more drinks in a single morning, afternoon, or night in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)
Perception of Alcohol Binge Use Frequency Among WomenBaseline (The experimental manipulation in this study has to do with which version of the survey the study participant receives, so the time frame for assessment is immediate, and participants are asked about the past 12 months)"According to your perception, have most women in your cell in this parish taken 6 or more drinks in a single morning, afternoon, or night in the past 12 months?" (single item, culturally adapted and developed for this study; categorical response options)

Countries

Uganda

Contacts

PRINCIPAL_INVESTIGATORAlexander C Tsai, MD

Massachusetts General Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 2, 2026