Online Games to Help Canadian and U.S. Adults Identify COVID-19 and Vaccine Misinformation: Three Sequential Randomized Studies
Public ClinicalTrials.gov record NCT07758309. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Leveraging Digital Tools to Increase COVID-19 Vaccine Adoption
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
COVID-19 misinformation contributed to vaccine hesitancy and preventable illness. This record covers three sequential randomized studies (conducted in Canada and the United States, November-December 2020) testing whether a brief online game helps adults identify COVID-19 and vaccine misinformation. In the game, participants judged whether statements about COVID-19 or COVID-19 vaccines were true or false and immediately received the correct answer with a brief evidence-based explanation, delivered in a game-like format with points, ranks, and feedback. Study 1 (Canada, n = 2,018) randomized participants to complete the knowledge assessment either before playing the game or immediately after playing it. Studies 2 (U.S., n = 822) and 3 (U.S., n = 797) compared the game against the identical corrective content presented as plain text, for general COVID-19 misinformation and vaccine-specific misinformation, respectively. The hypothesis was that gamified corrective information produces more accurate knowledge than non-gamified information. The primary outcome was accuracy in identifying true and false claims; vaccination intention was a secondary outcome.
Study identification
- NCT ID
- NCT07758309
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 3,637 participants
Conditions and interventions
Interventions
- Gamified misinformation refutation quiz Behavioral
- Refutational text (active control) Behavioral
Behavioral
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 19, 2020
- Primary completion
- Dec 27, 2020
- Completion
- Dec 27, 2020
- Last update posted
- Aug 10, 2026
2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Online | Columbia | South Carolina | 29208 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
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About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07758309, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 10, 2026 · Synced Sep 1, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT07758309 live on ClinicalTrials.gov.