Use of Consent Language and Mode to Improve Interactive Voice Response Survey in Colombia and Uganda

A Randomized Controlled Trial of Varying Consent Language and Mode to Improve Interactive Voice Response (IVR) Survey Performance in Colombia and Uganda

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.

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.

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