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

Not Applicable

Completed

• Conditions: Surveys and Questionnaires; Noncommunicable Diseases
• Interventions: Other: Pre-survey incentive; Other: Post-survey incentive

• Registration Number: NCT04513236
• Lead Sponsor: Johns Hopkins Bloomberg School of Public Health

Brief Summary

This study evaluates the effect of two different airtime incentive timings 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 sampling techniques, the study randomized RDD participants to one of three airtime incentive timings, some of all of that incentive being contingent on their 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 Timeline

• Study Start: 2017-03-26
• Primary Completion: 2017-11-01
• Study Completion: 2017-11-01
• Status Verified: 2020-08
• Study First Submitted: 2020-08-12
• Study First Submitted QC: 2020-08-12
• Study First Posted: 2020-08-14
• Last Update Submitted: 2023-05-09
• Last Update Posted: 2023-05-10

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 2287

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Pre-survey incentive	Pre-survey incentive	0.1X incentive before the survey, 1X afterwards
Post-survey incentive	Post-survey incentive	1X incentive after the survey

Primary Outcome Measures

Name	Time	Method
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 interviews, P is partial interviews, R is refusals and breakoffs, and eU is the estimated eligible proportion of unknowns
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, and R is refusals and breakoffs.

Secondary Outcome Measures

Name	Time	Method
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 interviews, P is partial interviews, 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 interviews, P is partial interviews, R is refusals and breakoffs, and eU is the estimated eligible proportion of unknowns

Trial Locations

Locations (2)

Makerere University School of Public Health; 🇺🇬 Kampala, Uganda

Institute of Epidemiology Disease Control and Research; 🇧🇩 Dhaka, Bangladesh