Altruistically Framed Messages and Impact on Parents' Reported Willingness to Immunize Their Children

December 18, 2013 updated by: Indiana University
The purpose of this study is to examine the impact of different message framing (i.e., communication strategies) on parents' intentions to vaccinate their infants for measles, mumps, and rubella. We hypothesize that information specifically emphasizing various benefits of MMR vaccination will have different impacts on parents' reported levels of intention.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The purpose of this study is to investigate attitudes concerning the Measles, Mumps, & Rubella (MMR) vaccine among adult parents in the United States. Attitudes will be assessed via a web-based survey administered by Survey Sampling International (SSI). Project sample size is 1,000, all to be recruited by SSI. The survey will take no more than 20-30 minutes to complete. The survey questions and response options attached. With the exception of demographic questions (e.g., age, sex, race) at the end of the survey, questions will not be able to be "skipped" because 1) the survey questions primarily assess attitudes and beliefs, 2) the questions are not of a sensitive nature, 3) responses are anonymous, 4) respondents have indicated their desire and willingness to respond to surveys like this by virtue of their enrollment as an SSI panel member, 5) there is no pressure for respondents to complete the survey, 6) respondents may cease responding to the survey at any time after they begin.

Respondents will be asked to provide information about their children's ages and sex, as well as historical recall information about their past vaccine decisions for their child/children. All respondents will receive general information from the Centers for Disease Control and Prevention (CDC) regarding MMR and the MMR vaccine (taken from the CDC's Vaccine Information Sheet), followed by summarized information about MMR and the MMR vaccine. A quarter of respondents will receive only this information. The other three-quarters of respondents will also receive additional "benefit" information that either underscores: a) the MMR vaccine's benefit to the child who receives it, b) the MMR vaccine's benefits to society as a whole, or c) the MMR vaccine's benefit to both the child who receives it as well as to society as a whole. The purpose of this additional "benefit" information (which will randomly vary among respondents) is to compare people's attitudes when they're given this information about the MMR vaccine's benefit to people's attitudes when they receive the general information. This information is noted in the attached survey, and mimics the information that parents are typically given in clinic settings regarding MMR and the MMR vaccine. The purpose of this study is to systematically assess people's responses to this information, which is already offered in clinical settings and is publicly available via the CDC.

Study Type

Interventional

Enrollment (Actual)

802

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 18 years of age or older
  • fluent in English
  • parent or primary caregiver to at least 1 child 17 years of age or younger

Exclusion Criteria:

  • not fluent in English
  • younger than 18 years of age
  • not a parent or primary caregiver to someone 17 years of age or younger

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Benefits to Child
CDC VIS + message emphasizing benefits of MMR vaccine to child
Behavioral: Benefits to Child
CDC VIS + message emphasizing benefits to child of MMR vaccine
Behavioral: CDC VIS
CDC Vaccine Information Statement (VIS)
Active Comparator: CDC VIS
CDC Vaccine Information Statement (VIS)
Behavioral: CDC VIS
CDC Vaccine Information Statement (VIS)
Experimental: Benefits to Society
CDC VIS + message emphasizing benefits of MMR vaccine to society
Behavioral: CDC VIS
CDC Vaccine Information Statement (VIS)
Behavioral: Benefits to Society
CDC VIS + message emphasizing benefits to society of MMR vaccine
Experimental: Benefits to Child and Society
CDC VIS + message emphasizing benefits of MMR vaccine to both child and to society
Behavioral: CDC VIS
CDC Vaccine Information Statement (VIS)
Behavioral: Benefits to Child and Society
CDC VIS + message emphasizing benefits both to child and to society of MMR vaccine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Parental MMR Vaccine Intentions for Their Children
Time Frame: Outcome (MMR intention) is measured immediately after participant receives message; measurement is immediate (not longitudnal follow-up)

Participants report their willingness to vaccinate their infant for measles, mumps, and rubella on an 11-point scale anchored at 0(not at all likely) and 100(extremely likely) per the following prompt:

On the scale below, please indicate how likely you are to have your baby receive the MMR vaccine.
Outcome (MMR intention) is measured immediately after participant receives message; measurement is immediate (not longitudnal follow-up)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Indiana University

Investigators

  • Principal Investigator: Kristin S Hendrix, PhD, Indiana University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2012

Primary Completion (Actual)

May 1, 2012

Study Completion (Actual)

May 1, 2012

Study Registration Dates

First Submitted

December 13, 2013

First Submitted That Met QC Criteria

December 18, 2013

First Posted (Estimate)

December 19, 2013

Study Record Updates

Last Update Posted (Estimate)

December 19, 2013

Last Update Submitted That Met QC Criteria

December 18, 2013

Last Verified

December 1, 2013

More Information

Terms related to this study

Other Study ID Numbers

  • 1203008361

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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