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.

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

Surveys and Questionnaires

Noncommunicable Diseases

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.

Pre-survey incentive

Post-survey incentive

A Randomized Controlled Trial of Varying Airtime Incentive Timing to Improve Interactive Voice Response (IVR) Survey Performance in Bangladesh and Uganda

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.

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

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

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

No Airtime Incentive was given for completing the survey

0.1X incentive before the survey, 1X afterwards

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

About this trial

Study ID

Status

Type

Phase

Placebo

Accepting

Trial Timing

What is this trial about?

What are the participation requirements?

Locations

Location

Status