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

Surveys and Questionnaires Clinical Trial

Official title:
A Randomized Controlled Trial of Airtime Incentives to Improve Short Message Service (SMS) Survey Performance in Colombia and Tanzania

Clinical Trial Summary

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.

Clinical Trial Description

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. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03768934
Study type Interventional
Source Johns Hopkins Bloomberg School of Public Health
Contact
Status Completed
Phase N/A
Start date February 19, 2019
Completion date April 26, 2019
View Details
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