Use of Consent Language and Mode to Improve Interactive Voice Response Survey in Colombia and Uganda

Summary

This study evaluates the effect of one new form of introduction language and three new modes of providing consent on interactive voice response (IVR) survey cooperation, response, refusal and contact rates, as compared to control group, in Colombia and Uganda.

Conditions

• Surveys and Questionnaires
• Noncommunicable Diseases

Interventions

OTHER

Modified Introduction

A variation in the introductory content to motivate participants to complete the survey. Participants will be presented with modified introductory language based on the findings from local focus groups and key informant interviews.

OTHER

Active Opt-in

A variation in the consent mode to motivate participants to complete the survey. Participants will be given the choice to actively opt-in to the survey, if they do not respond, the survey will terminate.

OTHER

Active Opt-out

A variation in the consent mode to motivate participants to complete the survey. Participants will be given the choice to actively opt-out to the survey, if they do not respond, the survey will continue.

OTHER

Passive Opt-in

A variation in the consent mode to motivate participants to complete the survey. Participants will be given the choice to passively opt-in to the survey, if they do not hang-up, the survey will continue.

Sponsors & Collaborators

• The Bloomberg Family Foundation, Inc.

  collaborator OTHER

• Makerere University

  collaborator OTHER

• Pontificia Universidad Javeriana

  collaborator OTHER

• Johns Hopkins Bloomberg School of Public Health

  lead OTHER

Principal Investigators

• Adnan A Hyder, PhD, MBBS · Johns Hopkins University Bloomberg School of Public Health

• George W. Pariyo, PhD · Johns Hopkins University Bloomberg School of Public Health

Study Design

Allocation

RANDOMIZED

Purpose

OTHER

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2018-08-31

Primary Completion

2019-01-05

Completion

2019-01-05

Countries

• Colombia
• Uganda

Study Locations