Skip to main content
OpenTrials
Completed

NCT Number: NCT03507231

Non-integrated Costs Increase Effectiveness of Incentives

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.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Control - No Incentive for Flu Vaccine Direct Incentive Indirect Incentive

Age range

18 year–100 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Rutgers University

New Brunswick, New Jersey, 08901, United States

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Must be faculty or staff at Rutgers University.

Exclusion criteria

-

Treatment and study plan

Email Message

Behavioral

Participants will randomly receive an e-mail message about the availability of free flu vaccines.

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

Primary outcomes

  1. Number of people vaccinated

    Time frame: 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 outcomes

  1. Intention to get vaccinated

    Time frame: 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.

Sponsors and collaborators

Lead sponsor

Carnegie Mellon University

Other

Collaborators

  • Rutgers University
  • University of Pennsylvania

Registry information

Important dates

Study start
2017
Primary completion
2018
Study completion
2018
First posted
Apr 25, 2018
Registry last updated
Apr 25, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.