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Asking Survey Respondents about Reasons for Their Behavior: A Split Ballot Experiment in Ethiopia [journal article]
Source: Survey Methods: Insights from the Field, (2014). p.14
In Search of the Optimal Mode for Mobile Phone Surveys in Developing Countries: A Comparison of IVR, SMS, and CATI in Nigeria [journal article]
Source: Survey Research Methods, 13 (2019) 3. p.305-318