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

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

1511 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-06-14

Study Completion Date

2017-08-18

Brief Summary

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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.

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Detailed Description

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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.

Conditions

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Surveys and Questionnaires Noncommunicable Diseases

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Participants were randomized to one of two introduction and consent modes: 1) computer-assisted telephone interviews, or 2) interactive voice response.

Primary Study Purpose

OTHER

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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CATI

Introduction and consent via computer assisted telephone interview

Group Type EXPERIMENTAL

CATI

Intervention Type OTHER

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.

IVR

Introduction and consent via interactive voice response

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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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.

Intervention Type OTHER

Eligibility Criteria

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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.