Noncommunicable Diseases, Surveys and Questionnaires
Conditions
Keywords
mobile phone surveys, interactive voice response, consent
Brief summary
This study evaluates the effect of one new form of introduction language and three new modes of providing consent on interactive voice response (IVR) survey cooperation, response, refusal and contact rates, as compared to control group, in Colombia and Uganda.
Detailed description
Using random digit dialing (RDD) sampling technique, RDD participants will be randomized to one of five introduction and consent combinations and then have them complete noncommunicable disease risk factor survey with an additional module regarding their understanding of the survey and of its voluntariness. This mobile phone survey will be 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 will be conducted in both Colombia and Uganda.
Interventions
OTHERModified Introduction
A variation in the introductory content to motivate participants to complete the survey. Participants will be presented with modified introductory language based on the findings from local focus groups and key informant interviews.
OTHERActive Opt-in
A variation in the consent mode to motivate participants to complete the survey. Participants will be given the choice to actively opt-in to the survey, if they do not respond, the survey will terminate.
OTHERActive Opt-out
A variation in the consent mode to motivate participants to complete the survey. Participants will be given the choice to actively opt-out to the survey, if they do not respond, the survey will continue.
OTHERPassive Opt-in
A variation in the consent mode to motivate participants to complete the survey. Participants will be given the choice to passively opt-in to the survey, if they do not hang-up, the survey will continue.
Sponsors
The Bloomberg Family Foundation, Inc.
Makerere University
Pontificia Universidad Javeriana
Johns Hopkins Bloomberg School of Public Health
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)
Intervention model description
Participants will be randomized to one of five introduction and consent combinations: 1) standard introduction and standard consent mode (active opt-in and active opt-out); 2) modified introduction language and standard consent mode; 3) modified introduction language and active opt-in consent; 4) modified introduction language and active opt-out consent; or 5) modified introduction language and passive opt-in consent. This randomization will occur at the beginning of the survey.
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Access to a mobile phone * Greater or equal to 18 years of age * In Colombia, conversant in the Spanish language. In Uganda, conversant in Luo, Luganda, Runyakitara or English languages.
Exclusion criteria
* Less than 18 years of age
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Cooperation Rate #1 | Through study completion, an average of one month | As defined by American Association for Public Opinion Research, the number of complete interviews divided by the number of complete interviews, partial interviews, refusals and breakoffs. |
| Response Rate #4 | Through study completion, an average of one month | As defined by American Association for Public Opinion Research, the number of complete and partial interviews divided by the number of complete interviews, partial interviews, refusals, breakoffs and the estimated eligible proportion of unknowns. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Refusal Rate #2 | Through study completion, an average of one month | As defined by American Association for Public Opinion Research, the number of refusals and breakoffs divided by the number of complete interviews, partial interviews, refusals, breakoffs and 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, the number of complete and partial interviews, refusals and breakoffs divided by the number of complete interviews, partial interviews, refusals, breakoffs and the estimated eligible proportion of unknowns. |
Countries
Colombia, Uganda
Outcome results
None listed