Tailoring of Vaccine-Focused Messages: Moral Foundations

NCT ID: NCT02851459

Last Updated: 2017-03-10

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

COMPLETED

Clinical Phase

NA

Total Enrollment

850 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-08-31

Study Completion Date

2016-10-31

Brief Summary

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This study is the first phase of a trial examining decision making about vaccines. This phase tests the impact of targeted vaccine-focused health messages on vaccine beliefs held by parents of young children and pre-adolescents. The participant's vaccine beliefs will be assessed at baseline. Two weeks later, the participant's moral matrix will be assessed. A vaccine-related message that appeals to the individual's three most or least emphasized moral foundations will then be presented. Immediately afterwards, vaccine beliefs will be assessed to determine the impact of the message.

Detailed Description

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Vaccination of young children helps protect this population against a variety of diseases. Children are especially at risk for contraction of and complications from diseases due to their vulnerable immune systems. New evidence-based messages are needed to maintain and increase vaccination uptake among this group. An emphasis on different values is related to decisions parents make about vaccines. The purpose of this study is to develop, implement, and evaluate messages that focus on different aspects of values to impact vaccination attitudes among parents of young children.

Parents emphasize different moral foundations when deciding whether or not to vaccinate children. Based on this research, a messaging intervention with parents of children who are 12 years of age or younger will be conducted. These messages will aid in assessment of how different moral foundations impact attitudes towards vaccination and intent to vaccinate.

This study tests the impact of targeted vaccine-focused health messages on vaccine beliefs held by parents of young children and pre-adolescents. The participant's vaccine beliefs will be assessed at baseline. Two weeks later, the participant's moral matrix will be assessed. A vaccine-related message that appeals to the individual's three most or least emphasized moral foundations will then be presented. Immediately afterwards, vaccine beliefs will be assessed to determine the impact of the message.

Conditions

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Childhood Vaccinations

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Morally Congruent Message

Participants randomized to this arm will receive a vaccine-related message developed to appeal to their three most-emphasized moral foundations.

Group Type EXPERIMENTAL

Baseline Survey

Intervention Type BEHAVIORAL

The baseline survey contains questions regarding level of existing vaccine hesitancy (Parent Attitudes about Childhood Vaccines (PACV) short scale and HealthStyles questions), demographic information, and intent to vaccinate their children. All study surveys will be completed on an electronic device.

Pre-intervention Survey

Intervention Type BEHAVIORAL

Participants will be contacted two weeks after completing the baseline survey to answer questions about their moral beliefs. The survey will include questions form the Moral Foundations Questionnaire as well as additional questions. An algorithm will calculate the participant's moral matrix based on answers to these questions.

Morally Congruent Message

Intervention Type BEHAVIORAL

Intervention messages consist of four short paragraphs. The first three focus on how getting vaccinated helps uphold specific moral foundations. The fourth summarizes the contents of the prior paragraphs.

Participants randomized to the morally congruent arm will receive a vaccine-related message developed to appeal to their three most-emphasized moral foundations. The first paragraph focuses on the most emphasized foundation, the second on the third-most emphasized, and the third on the second-most emphasized.

Post-Intervention Survey

Intervention Type BEHAVIORAL

Immediately after reading the randomly assigned message participants will complete a follow-up survey assessing level of existing vaccine hesitancy (PACV short scale and HealthStyles questions) and intent to vaccinate their children.

Morally Non-Congruent Message

Participants randomized to this arm will receive a vaccine-related message developed to appeal to their three least-emphasized moral foundations.

Group Type EXPERIMENTAL

Baseline Survey

Intervention Type BEHAVIORAL

The baseline survey contains questions regarding level of existing vaccine hesitancy (Parent Attitudes about Childhood Vaccines (PACV) short scale and HealthStyles questions), demographic information, and intent to vaccinate their children. All study surveys will be completed on an electronic device.

Pre-intervention Survey

Intervention Type BEHAVIORAL

Participants will be contacted two weeks after completing the baseline survey to answer questions about their moral beliefs. The survey will include questions form the Moral Foundations Questionnaire as well as additional questions. An algorithm will calculate the participant's moral matrix based on answers to these questions.

Morally Non-Congruent Message

Intervention Type BEHAVIORAL

Intervention messages consist of four short paragraphs. The first three focus on how getting vaccinated helps uphold specific moral foundations.

Participants randomized to the morally non-congruent arm will receive a vaccine-related message developed to appeal to their three least-emphasized moral foundations. The first paragraph focuses on the least emphasized foundation, the second on the third-least emphasized, and the third on the second-least emphasized.

Post-Intervention Survey

Intervention Type BEHAVIORAL

Immediately after reading the randomly assigned message participants will complete a follow-up survey assessing level of existing vaccine hesitancy (PACV short scale and HealthStyles questions) and intent to vaccinate their children.

Control Message

Participants randomized to the control arm will be provided with a short passage about the costs and benefits of bird feeding.

Group Type SHAM_COMPARATOR

Baseline Survey

Intervention Type BEHAVIORAL

The baseline survey contains questions regarding level of existing vaccine hesitancy (Parent Attitudes about Childhood Vaccines (PACV) short scale and HealthStyles questions), demographic information, and intent to vaccinate their children. All study surveys will be completed on an electronic device.

Pre-intervention Survey

Intervention Type BEHAVIORAL

Participants will be contacted two weeks after completing the baseline survey to answer questions about their moral beliefs. The survey will include questions form the Moral Foundations Questionnaire as well as additional questions. An algorithm will calculate the participant's moral matrix based on answers to these questions.

Control Message

Intervention Type BEHAVIORAL

Participants randomized to the control arm will be provided with a short passage about the costs and benefits of bird feeding.

Post-Intervention Survey

Intervention Type BEHAVIORAL

Immediately after reading the randomly assigned message participants will complete a follow-up survey assessing level of existing vaccine hesitancy (PACV short scale and HealthStyles questions) and intent to vaccinate their children.

Interventions

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Baseline Survey

The baseline survey contains questions regarding level of existing vaccine hesitancy (Parent Attitudes about Childhood Vaccines (PACV) short scale and HealthStyles questions), demographic information, and intent to vaccinate their children. All study surveys will be completed on an electronic device.

Intervention Type BEHAVIORAL

Pre-intervention Survey

Participants will be contacted two weeks after completing the baseline survey to answer questions about their moral beliefs. The survey will include questions form the Moral Foundations Questionnaire as well as additional questions. An algorithm will calculate the participant's moral matrix based on answers to these questions.

Intervention Type BEHAVIORAL

Morally Congruent Message

Intervention messages consist of four short paragraphs. The first three focus on how getting vaccinated helps uphold specific moral foundations. The fourth summarizes the contents of the prior paragraphs.

Participants randomized to the morally congruent arm will receive a vaccine-related message developed to appeal to their three most-emphasized moral foundations. The first paragraph focuses on the most emphasized foundation, the second on the third-most emphasized, and the third on the second-most emphasized.

Intervention Type BEHAVIORAL

Morally Non-Congruent Message

Intervention messages consist of four short paragraphs. The first three focus on how getting vaccinated helps uphold specific moral foundations.

Participants randomized to the morally non-congruent arm will receive a vaccine-related message developed to appeal to their three least-emphasized moral foundations. The first paragraph focuses on the least emphasized foundation, the second on the third-least emphasized, and the third on the second-least emphasized.

Intervention Type BEHAVIORAL

Control Message

Participants randomized to the control arm will be provided with a short passage about the costs and benefits of bird feeding.

Intervention Type BEHAVIORAL

Post-Intervention Survey

Immediately after reading the randomly assigned message participants will complete a follow-up survey assessing level of existing vaccine hesitancy (PACV short scale and HealthStyles questions) and intent to vaccinate their children.

Intervention Type BEHAVIORAL

Other Intervention Names

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Morally Congruent Vaccine Focused Message Morally Non-Congruent Vaccine Focused Message

Eligibility Criteria

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Inclusion Criteria

* Have at least one child ≤ 12 years of age
* Reside in the United States

Exclusion Criteria

* Have previously participated in this study
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Emory University

OTHER

Sponsor Role lead

Responsible Party

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Saad B. Omer, MBBS, MPH, PhD

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Saad B Omer, BBS, MPH, PhD

Role: PRINCIPAL_INVESTIGATOR

Emory University

Locations

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Emory University School Of Public Health - Only Online Recruitment

Atlanta, Georgia, United States

Site Status

Countries

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United States

Other Identifiers

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IRB00087211

Identifier Type: -

Identifier Source: org_study_id

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