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

Study Overview
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Brief Summary
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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
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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.

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

Conditions
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Surveys and Questionnaires, Noncommunicable Diseases

Intervention / Treatment
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* Other: Female Voice
* Other: Motivational Introduction
* Other: Male Voice
* Other: Informational Introduction


Participation Criteria
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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. Exclusion Criteria: Less than 18 years of age

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional 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.
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Male Informational<br>Male voice, informational introduction | Other: Male Voice<br>* The survey was narrated by a male voice<br>Other: Informational Introduction<br>* The survey introduction was worded to include informational content<br>|
| Experimental: Male Motivational<br>Male voice, motivational introduction | Other: Motivational Introduction<br>* The survey introduction was worded to include motivational content<br>Other: Male Voice<br>* The survey was narrated by a male voice<br>|
| Experimental: Female Informational<br>Female voice, informational introduction | Other: Female Voice<br>* The survey was narrated by a female voice<br>Other: Informational Introduction<br>* The survey introduction was worded to include informational content<br>|
| Experimental: Female Motivational<br>Female voice, motivational introduction | Other: Female Voice<br>* The survey was narrated by a female voice<br>Other: Motivational Introduction<br>* The survey introduction was worded to include motivational content<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Cooperation rate #1 | 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 | Through study completion, an average of one month | 
| Response Rate #4 | 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. | Through study completion, an average of one month | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Refusal Rate #2 | 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 | Through study completion, an average of one month | 
| Contact Rate #2 | 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 | Through study completion, an average of one month | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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mobile phone surveys, interactive voice response, narration