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| Name | Class |
|---|---|
| Rutgers University | OTHER |
| University of Pennsylvania | OTHER |
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The investigators will test the hypothesis that the control (no incentive) condition will have the lowest vaccination rate, the main task condition will have a significantly higher vaccination rate while the indirect condition will have the highest vaccination rate.
Participants will be randomly assigned to one of the three message conditions and their vaccination records obtained from the university Occupational Health Department.
The investigators will send e-mails to a complete mailing list of faculty and staff at a university. Each recipient will be randomly assigned to one of three conditions: control, main task incentive or indirect incentive. Our main dependent variable will be whether or not participants decide to get vaccinated. The investigators will obtain their actual vaccination records from the university Occupational Health Department.
Within the e-mail message, participants will indicate whether or not they intend to get vaccinated. Intention serves as an indirect dependent outcome. Upon clicking to indicate their intention, participants are redirected to a page which gives further instructions on how to proceed.
Participants who vaccinate will be asked to complete a brief follow-up questionnaire to evaluate their experience with vaccination and (for those offered and incentive) to provide contact information to receive their payment.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Control | Active Comparator | Participants will receive an E-mail Message encouraging them to get vaccinated, and asking them to indicate if they intend to do so and to complete a brief questionnaire after vaccination. |
|
| Direct Incentive | Experimental | Participants will receive an E-mail Message encouraging them to get vaccinated, and asking them to indicate if they intend to do so and to complete a brief questionnaire after vaccination. They are offered an Incentive for Vaccination ($5 Amazon Gift Card). |
|
| Indirect Incentive | Experimental | Participants will receive an E-mail Message encouraging them to get vaccinated, and asking them to indicate if they intend to do so and to complete a brief questionnaire after vaccination. They are offered an Incentive for completing a short survey ($5 Amazon Gift Card). |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Email Message | Behavioral | Participants will randomly receive an e-mail message about the availability of free flu vaccines. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Number of people vaccinated | Measure the number of people who got vaccinated in the Fall 2017 semester at a large state university. We will collect vaccination records from the university Occupational Health Department | Up to 5 months |
| Measure | Description | Time Frame |
|---|---|---|
| Intention to get vaccinated | Participants will receive an e-mail with our main treatment manipulations. In each e-mail they will be able to indicate whether or not they want to get vaccinated. We will use this measure as a second dependent variable. | Up to 5 months |
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Inclusion Criteria:
Exclusion Criteria:
-
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| Name | Affiliation | Role |
|---|---|---|
| George Loewenstein, PhD | Carnegie Mellon University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Rutgers University | New Brunswick | New Jersey | 08901 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 25970009 | Background | Halpern SD, French B, Small DS, Saulsgiver K, Harhay MO, Audrain-McGovern J, Loewenstein G, Brennan TA, Asch DA, Volpp KG. Randomized trial of four financial-incentive programs for smoking cessation. N Engl J Med. 2015 May 28;372(22):2108-17. doi: 10.1056/NEJMoa1414293. Epub 2015 May 13. | |
| 20606147 | Result |
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De-identified data (condition, vaccination status) will be shared on a site such as Open Science Framework
12/31/2019, indefinitely
open access
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| ID | Term |
|---|---|
| D014611 | Vaccination |
| ID | Term |
|---|---|
| D016233 | Immunotherapy, Active |
| D007114 | Immunization |
| D007167 | Immunotherapy |
| D056747 | Immunomodulation |
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| Incentive for Vaccination | Behavioral | $5 gift card offered for vaccination |
|
| Incentive for completing a short survey | Behavioral | $5 gift card offered for completing s short survey after one gets vaccinated |
|
| Chapman GB, Li M, Colby H, Yoon H. Opting in vs opting out of influenza vaccination. JAMA. 2010 Jul 7;304(1):43-4. doi: 10.1001/jama.2010.892. No abstract available. |
| D001691 |
| Biological Therapy |
| D013812 | Therapeutics |
| D007158 | Immunologic Techniques |
| D008919 | Investigative Techniques |
| D011322 | Primary Prevention |
| D011314 | Preventive Health Services |
| D006296 | Health Services |
| D005159 | Health Care Facilities Workforce and Services |
| D003140 | Communicable Disease Control |
| D015980 | Public Health Practice |
| D011634 | Public Health |
| D004778 | Environment and Public Health |