An Experiment Comparing Public Reactions to the Labels "Community Immunity" Versus "Herd Immunity".

NCT ID: NCT07102472

Last Updated: 2025-08-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

350 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-22

Study Completion Date

2025-08-31

Brief Summary

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Participants are shown a scenario consisting of static images from a previous study ("herdimm") showing a visualization of how herd immunity works. Participants are randomized to see the text with the term "herd immunity" or "community immunity."

Detailed Description

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Conditions

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Attitudes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

SINGLE

Participants

Study Groups

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Herd immunity

Group Type PLACEBO_COMPARATOR

Herd immunity

Intervention Type BEHAVIORAL

Using the traditional term "herd immunity"

Community immunity

Group Type EXPERIMENTAL

Using the term "community immunity" instead of "herd immunity"

Intervention Type BEHAVIORAL

In the intervention arm, participants are shown the less traditional term "community immunity" in place of the more traditional "herd immunity"

Interventions

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Using the term "community immunity" instead of "herd immunity"

In the intervention arm, participants are shown the less traditional term "community immunity" in place of the more traditional "herd immunity"

Intervention Type BEHAVIORAL

Herd immunity

Using the traditional term "herd immunity"

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Able to use a computer
* Able to use the internet
* Able to read and respond to questions in English or French
* 18+ years old and living in Canada

Exclusion Criteria

\- Unable to view images on a computer
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Laval University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Central Contacts

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Holly Witteman, PhD

Role: CONTACT

418-656-2131

Other Identifiers

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commimm

Identifier Type: -

Identifier Source: org_study_id

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