Use of Introduction Mode to Improve Interactive Voice Response Surveys in Bangladesh and Tanzania

Overview

This study evaluates the effect of two different introduction modes on interactive voice response (IVR) survey cooperation, response, refusal, and contact rates, in Bangladesh and Tanzania.

Full Title of Study: “A Randomized Controlled Trial of Varying Introduction Mode to Improve Interactive Voice Response (IVR) Survey Performance in Bangladesh and Tanzania”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Other
    • Masking: Single (Outcomes Assessor)
  • Study Primary Completion Date: August 18, 2017

Detailed Description

Using random digit dialing (RDD) sampling techniques, participants were randomized to one of two introduction modes, followed by a noncommunicable disease (NCD) risk factor survey. The two modes were computer assisted telephone interview (CATI), in which a call-center employee read the introduction to a participant and received oral consent from them, before sending them the NCD risk factor survey via IVR, or the entire survey, including the introduction and consent, being obtained via IVR. In IVR surveys, participants use their touch tone key pad to answer pre-recorded questions. (i.e. If you are male, press 1; If you are female, press 2). This study was conducted in both Bangladesh and Tanzania.

Interventions

  • Other: CATI
    • The participants in this arm were read the introduction and asked for consent by a call center employee using computer-assisted telephone interviewing and then were sent a noncommunicable disease risk factor survey via interactive voice response. This mode was used to motivate participants to complete the survey.

Arms, Groups and Cohorts

  • Experimental: CATI
    • Introduction and consent via computer assisted telephone interview
  • No Intervention: IVR
    • Introduction and consent via interactive voice response

Clinical Trial Outcome Measures

Primary Measures

  • Cooperation Rate #1
    • Time Frame: Through study completion, an average of one month
    • As defined by American Association for Public Opinion Research, cooperation rate is defined as I/(I+P+R) where I is complete interviews, P is partial interviews, and R is refusals and breakoffs.
  • Response Rate #4
    • Time Frame: Through study completion, an average of one month
    • As defined by American Association for Public Opinion Research, response rate is defined as (I+P)/(I+P+R+eU) where I is complete interviews, P is partial interviews, R is refusals and breakoffs, and eU is the estimated eligible proportion of unknowns

Secondary Measures

  • Refusal Rate #2
    • Time Frame: Through study completion, an average of one month
    • As defined by American Association for Public Opinion Research, refusal rate is defined as (R)/(I+P+R+eU) where R is refusals and breakoffs, I is complete interviews, P is partial interviews, and eU is the estimated eligible proportion of unknowns.
  • Contact Rate #2
    • Time Frame: Through study completion, an average of one month
    • As defined by American Association for Public Opinion Research, contact rate is defined as (I+P+R)/(I+P+R+eU) where I is complete interviews, P is partial interviews, R is refusals and breakoffs, and eU is the estimated eligible proportion of unknowns.

Participating in This Clinical Trial

Inclusion Criteria

  • Access to a mobile phone – Greater or equal to 18 years of age – In Bangladesh, conversant in either English or Bangla language. In Uganda, conversant in either Luo, Luganda, Runyakitara, or English languages. Exclusion Criteria:

  • Less than 18 years of age

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: N/A

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Johns Hopkins Bloomberg School of Public Health
  • Collaborator
    • The Bloomberg Family Foundation, Inc.
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Official(s)
    • Adnan A Hyder, PhD, MBBS, Principal Investigator, Johns Hopkins University Bloomberg School of Public Health
    • George W. Pariyo, PhD, Principal Investigator, Johns Hopkins University Bloomberg School of Public Health

References

Gibson DG, Pariyo GW, Wosu AC, Greenleaf AR, Ali J, Ahmed S, Labrique AB, Islam K, Masanja H, Rutebemberwa E, Hyder AA. Evaluation of Mechanisms to Improve Performance of Mobile Phone Surveys in Low- and Middle-Income Countries: Research Protocol. JMIR Res Protoc. 2017 May 5;6(5):e81. doi: 10.2196/resprot.7534.

Gibson DG, Pereira A, Farrenkopf BA, Labrique AB, Pariyo GW, Hyder AA. Mobile Phone Surveys for Collecting Population-Level Estimates in Low- and Middle-Income Countries: A Literature Review. J Med Internet Res. 2017 May 5;19(5):e139. doi: 10.2196/jmir.7428.

Gibson DG, Farrenkopf BA, Pereira A, Labrique AB, Pariyo GW. The Development of an Interactive Voice Response Survey for Noncommunicable Disease Risk Factor Estimation: Technical Assessment and Cognitive Testing. J Med Internet Res. 2017 May 5;19(5):e112. doi: 10.2196/jmir.7340.

Hyder AA, Wosu AC, Gibson DG, Labrique AB, Ali J, Pariyo GW. Noncommunicable Disease Risk Factors and Mobile Phones: A Proposed Research Agenda. J Med Internet Res. 2017 May 5;19(5):e133. doi: 10.2196/jmir.7246.

Clinical trials entries are delivered from the US National Institutes of Health and are not reviewed separately by this site. Please see the identifier information above for retrieving further details from the government database.

At TrialBulletin.com, we keep tabs on over 200,000 clinical trials in the US and abroad, using medical data supplied directly by the US National Institutes of Health. Please see the About and Contact page for details.