Airtime Incentive Amounts 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 airtime incentive amounts on interactive voice response (IVR) survey cooperation, response, refusal, and contact rates, as compared to control group, in Bangladesh and Uganda.

Detailed Description
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Using random digit dialing sampling techniques, the investigators randomized random digit dialed (RDD) participants to one of three airtime incentive amounts contingent on them completing the 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 Varying Airtime Incentive Amounts 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: 1X airtime incentive
* Other: 2X airtime incentive


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 three airtime incentive amounts: 1) no incentive; 2) 1X incentive; or 3) 2x incentive where X was equal to 50 Bangladeshi Taka ($0.60 USD) or 5000 Ugandan Shillings (UGX; $1.35 USD as of April 3, 2018). Airtime incentives were sent if participants completed the noncommunicable disease risk factor survey
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| No Intervention: Control<br>No airtime incentive was given for completing the survey | |
| Experimental: 1X incentive<br>1X airtime incentive | Other: 1X airtime incentive<br>* an incentive given in the form of airtime to motivate participants to complete the survey. Participants were given 50 Bangladeshi Taka ($0.60 USD) or 5000 Ugandan Shillings (UGX; $1.35 USD as of April 3, 2018) worth of airtime for completing the survey<br>|
| Experimental: 2X incentive<br>2X airtime incentive | Other: 2X airtime incentive<br>* an incentive given in the form of airtime to motivate participants to complete the survey. Participants were given 100 Bangladeshi Taka ($1.20 USD) or 10000 UGX ($2.70 USD) worth of airtime for completing the survey<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,the number of complete interviews divided by the sum of complete interviews, partial interviews, refusals, and breakoffs | Through study completion, an average of one month | 
| Response Rate #4 | As defined by American Association for Public Opinion Research,the number of complete and partial interviews divided by the sum of complete interviews, partial interviews, refusals, breakoffs, and 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,the number of refusals and break-offs divided by the number of complete interviews, partial interviews, refusals, breakoffs, and 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,the number of complete and partial interviews, refusals and break-offs divided by the number of complete interviews, partial interviews, refusals, breakoffs, and 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, incentive