Control - No Incentive for Flu Vaccine, Direct Incentive, Indirect Incentive
Conditions
Keywords
incentives, field study, vaccination
Brief summary
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.
Detailed description
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.
Interventions
BEHAVIORALEmail Message
Participants will randomly receive an e-mail message about the availability of free flu vaccines.
BEHAVIORALIncentive for Vaccination
$5 gift card offered for vaccination
BEHAVIORALIncentive for completing a short survey
$5 gift card offered for completing s short survey after one gets vaccinated
Sponsors
Rutgers University
University of Pennsylvania
Carnegie Mellon University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
Yes
Inclusion criteria
* Must be faculty or staff at Rutgers University.
Exclusion criteria
\-
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of people vaccinated | Up to 5 months | 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 |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Intention to get vaccinated | Up to 5 months | 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. |
Countries
United States
Outcome results
None listed