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| Name | Class |
|---|---|
| The Bloomberg Family Foundation, Inc. | OTHER |
| Ifakara Health Institute | OTHER |
| Pontificia Universidad Javeriana | OTHER |
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This study evaluates the effect of four different airtime incentive amounts on short message service (SMS) survey cooperation, response, refusal and contact rates, as compared to control group, in Colombia and Tanzania.
Using random digit dialing (RDD) sampling technique, participants were randomized to one of four airtime incentive amounts contingent on them completing the noncommunicable disease risk factor survey. This mobile phone survey will be sent as a short message service (SMS). In SMS surveys, participants use their touch tone key pad to answer written questions. (i.e. If you are male, press 1; If you are female, press 2). This study will be conducted in both Colombia and Tanzania.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Control | No Intervention | No airtime incentive for completing the survey | |
| 1X Incentive | Experimental | 1X airtime incentive |
|
| 2X incentive | Experimental | 2X airtime incentive |
|
| Lottery Incentive | Experimental | Lottery airtime incentive where odds of winning lottery are 1 out of 20 |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| 1X airtime incentive | Other | An incentive given in the form of airtime. |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Cooperate 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 |
| 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 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Adnan A Hyder, PhD, MBBS | Johns Hopkins University Bloomberg School of Public Health | Principal Investigator |
| George W Pariyo, PhD | Johns Hopkins University Bloomberg School of Public Health | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Instituto de Salud Publica Pontificia Universidad Javeriana | Bogotá | D.C. | Colombia | |||
| Ifakara Health Institute |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 28476729 | Background | Gibson DG, Pariyo GW, Wosu AC, Greenleaf AR, Ali J, Ahmed S, Labrique AB, Islam K, Masanja H, Rutebemberwa E, Hyder AA. Evaluation of Mechanisms to Improve Performance of Mobile Phone Surveys in Low- and Middle-Income Countries: Research Protocol. JMIR Res Protoc. 2017 May 5;6(5):e81. doi: 10.2196/resprot.7534. | |
| 28476725 | Background |
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Participants will be randomized to one of four airtime amounts: 1) no incentive; 2) 1X incentive; 3) 2X incentive or 4) a lottery incentive, in which one out of every 20 participants will receive the incentive.
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| 2X airtime Incentive |
| Other |
An incentive given in the form of airtime. |
|
| Lottery airtime incentive | Other | An incentive given in the form of airtime. |
|
| 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 |
| Dar es Salaam |
| Tanzania |
| Gibson DG, Pereira A, Farrenkopf BA, Labrique AB, Pariyo GW, Hyder AA. Mobile Phone Surveys for Collecting Population-Level Estimates in Low- and Middle-Income Countries: A Literature Review. J Med Internet Res. 2017 May 5;19(5):e139. doi: 10.2196/jmir.7428. |
| 28476724 | Background | Gibson DG, Farrenkopf BA, Pereira A, Labrique AB, Pariyo GW. The Development of an Interactive Voice Response Survey for Noncommunicable Disease Risk Factor Estimation: Technical Assessment and Cognitive Testing. J Med Internet Res. 2017 May 5;19(5):e112. doi: 10.2196/jmir.7340. |
| 28476722 | Background | Hyder AA, Wosu AC, Gibson DG, Labrique AB, Ali J, Pariyo GW. Noncommunicable Disease Risk Factors and Mobile Phones: A Proposed Research Agenda. J Med Internet Res. 2017 May 5;19(5):e133. doi: 10.2196/jmir.7246. |
| ID | Term |
|---|---|
| D000073296 | Noncommunicable Diseases |
| ID | Term |
|---|---|
| D020969 | Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
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