Comparison of Interactive Voice Response (IVR) and Computer-assisted Telephone Interview (CATI) Mobile Phone Surveys for Non-communicable Disease Risk Factor Surveillance in Bangladesh
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Surveys and Questionnaires
- Sponsor
- Johns Hopkins Bloomberg School of Public Health
- Enrollment
- 6151
- Locations
- 1
- Primary Endpoint
- Cooperation Rate #1
- Status
- Completed
- Last Updated
- 4 years ago
Overview
Brief Summary
This study focuses on mechanisms to adapt the performance of interactive voice response (IVR) and computer assisted telephone interviews (CATI) surveys conducted in low-and middle-income (LMIC) setting (Bangladesh) and evaluates how the two survey modalities (IVR and CATI) affect survey metrics, including response, completion and attrition rates.
Detailed Description
Using random digit dialing (RDD) sampling technique, participants will be randomized to one of two arms : 1) IVR or 2) CATI. Participants in the first study arm will receive an IVR survey. Participants in the second study arm will receive a CATI survey. Each questionnaire contains a set of demographic questions and one non-communicable disease (NCD) module (alcohol, or tobacco, or diet, or physical activity, or blood pressure and diabetes). We will examine contact, response, refusal and cooperation rates and demographic representativeness by each study arm.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Access to a mobile phone
- •Greater or equal to 18 years of age
- •In Bangladesh, conversant in Bengali language
Exclusion Criteria
- •Less than 18 years of age
Outcomes
Primary Outcomes
Cooperation Rate #1
Time Frame: 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
Response Rate #4
Time Frame: Time Frame: 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
Secondary Outcomes
- Contact Rate #2(Through study completion, an average of one month)
- Refusal Rate #2(Through study completion, an average of one month)