Noncommunicable Diseases, Surveys and Questionnaires
Conditions
Keywords
mobile phone surveys, interactive voice response, incentive
Brief summary
This study evaluates the effect of three different airtime incentive structures on interactive voice response (IVR) survey cooperation, response, refusal and contact rates, as compared to a control group, in Bangladesh and Uganda.
Detailed description
Using random digit dialing (RDD) sampling technologies, participants were randomized to one of three airtime incentive structures 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 is being conducted in both Bangladesh and Uganda.
Interventions
OTHER1X Airtime Incentive
An incentive given in the form of airtime
An incentive given in the form of airtime
Sponsors
Makerere University
Institute of Epidemiology, Disease Control and Research
The Bloomberg Family Foundation, Inc.
Johns Hopkins Bloomberg School of Public Health
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)
Intervention model description
Participants were randomized to one of three airtime incentive structures: 1) no incentive; 2) a fixed 1X incentive for all participants who completed the noncommunicable disease risk factor survey; or 3) a lottery incentive (10-20 times larger than the fixed incentive) given to 1 out of every 20 participants who completed the same survey.
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, Runyakitara, Luganda or English languages.
Exclusion criteria
* Less than 18 years of age
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Cooperation Rate #1 | Through study completion, an average of one month | 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, R is refusals and breakoffs |
| Response Rate #4 | Through study completion, an average of one month | As defined by American Association for Public Opinion Research, response rate is defined as (I+P)/ (I+P+R+eU) where I is complete interview, P is partial interview, R is refusals and breakoffs, and eU is the estimated eligible proportion of unknowns |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Refusal Rate #2 | Through study completion, an average of one month | 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 interview, P is partial interview, and eU is the estimated eligible proportion of unknowns |
| Contact Rate #2 | Through study completion, an average of one month | 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 interview, P is partial interview, R is refusals and breakoffs, and eU is the estimated eligible proportion of unknowns |
Countries
Bangladesh, Uganda
Outcome results
None listed