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Use of Narrative Voice and Introduction Content to Improve Interactive Voice Response Surveys in Bangladesh and Uganda

A Randomized Controlled Trial of Narrative Voice and Introduction Content to Improve Interactive Voice Response (IVR) Survey Performance in Bangladesh and Uganda

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03772431
Enrollment
5580
Registered
2018-12-11
Start date
2017-03-26
Completion date
2017-07-17
Last updated
2023-05-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Noncommunicable Diseases, Surveys and Questionnaires

Keywords

mobile phone surveys, interactive voice response, narration

Brief summary

This study evaluates the effect of two different narrative voices (one male and one female) and two different introductions (one with informational content and the other with additional motivational content) on interactive voice response (IVR) survey cooperation, response, refusal, and contact rates, as compared to a control group (male, informational), in Bangladesh and Uganda.

Detailed description

Using random digit dialing (RDD) sampling techniques, participants were randomized to one of four arms: 1) male narrator and informational survey introduction, 2) male narrator and motivational survey introduction, 3) female narrator and informational survey introduction, and 4) female narrator and motivational survey introduction,male motivational, female informational, female motivational) which were then followed by a noncommunicable disease risk factor survey. This mobile phone survey was sent as an interactive voice response (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 Uganda.

Interventions

OTHERFemale Voice

The survey was narrated by a female voice

OTHERMotivational Introduction

The survey introduction was worded to include motivational content

OTHERMale Voice

The survey was narrated by a male voice

OTHERInformational Introduction

The survey introduction was worded to include informational content

Sponsors

The Bloomberg Family Foundation, Inc.
CollaboratorOTHER
Makerere University
CollaboratorOTHER
Institute of Epidemiology, Disease Control and Research
CollaboratorOTHER
Johns Hopkins Bloomberg School of Public Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)

Intervention model description

Participants were randomized to one of four narrator/introduction combinations: 1) male voice, informational content; 2) male voice, motivational content; 3) female voice, informational content; 4) female voice, motivational content.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

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

Design outcomes

Primary

MeasureTime frameDescription
Cooperation rate #1Through study completion, an average of one monthAs 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 #4Through study completion, an average of one monthAs 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

MeasureTime frameDescription
Refusal Rate #2Through study completion, an average of one monthAs 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 #2Through study completion, an average of one monthAs 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

Countries

Bangladesh, Uganda

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026