A Randomized Controlled Trial of Varying Airtime Incentive Amounts to Improve Interactive Voice Response (IVR) Survey Performance in Bangladesh and Uganda
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Enrollment
- 4,233
- Locations
- 2
- Primary Endpoint
- Cooperation Rate #1
Study Overview
Brief Summary
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
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
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Other
- Masking
- Single (Outcomes Assessor)
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts 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
Arms & Interventions
Control
No airtime incentive was given for completing the survey
1X incentive
1X airtime incentive
Intervention: 1X airtime incentive (Other)
2X incentive
2X airtime incentive
Intervention: 2X airtime incentive (Other)
Outcomes
Primary Outcomes
Cooperation Rate #1
Time Frame: Through study completion, an average of one month
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
Response Rate #4
Time Frame: Through study completion, an average of one month
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
Secondary Outcomes
- Refusal Rate #2(Through study completion, an average of one month)
- Contact Rate #2(Through study completion, an average of one month)