Lottery airtime incentive

OTHER3 trials

Sponsors

Johns Hopkins Bloomberg School of Public Health

Conditions

Noncommunicable DiseasesSurveys and Questionnaires

Unknown Phase

Use of Airtime Incentives to Improve Short Message Service Surveys in Colombia and Tanzania

CompletedNCT03768934

Johns Hopkins Bloomberg School of Public HealthNoncommunicable Diseases, Surveys and Questionnaires

Start: 2019-02-19End: 2019-04-26Updated: 2020-08-11

Use of Airtime Amounts to Improve Interactive Voice Response Surveys in Colombia and Tanzania

CompletedNCT03772470

Johns Hopkins Bloomberg School of Public HealthNoncommunicable Diseases, Surveys and Questionnaires

Start: 2018-08-09End: 2018-11-13Updated: 2018-12-11

Use of Airtime Structure to Improve Interactive Voice Response Surveys in Bangladesh and Uganda

CompletedNCT03773146

Johns Hopkins Bloomberg School of Public HealthNoncommunicable Diseases, Surveys and Questionnaires

Start: 2017-03-26End: 2017-07-14Updated: 2023-03-22

Related Papers

Promised and Lottery Airtime Incentives to Improve Interactive Voice Response Survey Participation Among Adults in Bangladesh and Uganda: Randomized Controlled Trial

Journal of Medical Internet Research2022-05-096 citations