Use of Introduction Mode to Improve Interactive Voice Response Surveys in Bangladesh and Tanzania

Not Applicable

Completed

• Conditions: Surveys and Questionnaires; Noncommunicable Diseases
• Interventions: Other: CATI

• Registration Number: NCT03772509
• Lead Sponsor: Johns Hopkins Bloomberg School of Public Health

Brief Summary

This study evaluates the effect of two different introduction modes on interactive voice response (IVR) survey cooperation, response, refusal, and contact rates, in Bangladesh and Tanzania.

Detailed Description

Using random digit dialing (RDD) sampling techniques, participants were randomized to one of two introduction modes, followed by a noncommunicable disease (NCD) risk factor survey. The two modes were computer assisted telephone interview (CATI), in which a call-center employee read the introduction to a participant and received oral consent from them, before sending them the NCD risk factor survey via IVR, or the entire survey, including the introduction and consent, being obtained via 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 Tanzania.

Study Timeline

• Study Start: 2017-06-14
• Primary Completion: 2017-08-18
• Study Completion: 2017-08-18
• Status Verified: 2018-12
• Study First Submitted: 2018-12-10
• Study First Submitted QC: 2018-12-10
• Study First Posted: 2018-12-11
• Last Update Submitted: 2023-05-19
• Last Update Posted: 2023-05-22

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 1511

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
CATI	CATI	Introduction and consent via computer assisted telephone interview

Primary Outcome Measures

Name	Time	Method
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.
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

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)

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

Ifakara Health Institute; 🇹🇿 Dar Es Salaam, Tanzania