HKI's coverage surveys, methods and results [2018]
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CountryYearReportLength of time between VAS campaign and surveyHow regions chosenHow clusters (villages or other small administrative units) chosenHow households chosenHow caretakers and children within households chosenData quality control processes?Verification questions asked?
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Surveys from VAS mass campaigns supported by GiveWell-directed funds
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Mali2018Not yet available2 to 4 weeks"We conducted three spearate PECS [Post-event coverage surveys]--one in Segou, one in Kayes, and a national PECS. Segou and Kayes are regions where HKI provided technical support. The national PECS considered all regions of the country, including the regions of Segou and Kayes."Probability proportional to size (PPS) cluster samplingRandomRandom selection of children (if more than one eligible child in household). Random selection of caretaker (if the chosen child has more than one caretaker)."We conducted extensive training of data collectors which included a field test. We also examined data in real time through the online platform for issues. In addition, we divided tasks during the survey between three surveyors in each team, used double data entry, and three layers of analysis of data and data review.""To verify if the child received the service (e.g. MUAC [middle-upper arm circumference] screening) or product (i.e. VAS, deworming pill, polio vaccine), the caretaker is shown the actual products, and is asked to identify and name each before being asked if the child received it."
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Burkina Faso2018Not yet available3 to 4 weeks"We conducted two separate PECS--one for rural and one for urban areas--because the delivery approach differed between the two areas. Rural areas relied on the new paid community health worker approach, and urban areas relied on door-to-door delivery."Probability proportional to size (PPS) cluster samplingRandomRandom selection of children (if more than one eligible child in household). Random selection of caretaker (if the chosen child has more than one caretaker)."We conducted extensive training of data collectors which included a field test. We also examined data in real time through the online platform for issues. In addition, we divided tasks during the survey between three surveyors in each team, used double data entry, and three layers of analysis of data and data review.""To verify if the child received the service (e.g. MUAC [middle-upper arm circumference] screening) or product (i.e. VAS, deworming pill, polio vaccine), the caretaker is shown the actual products, and is asked to identify and name each before being asked if the child received it."
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Surveys from other VAS mass campaigns
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HKI guidelinesN/AHKI post-event coverage survey manual 2014Within six weeksChoosing which regions and populations to survey depends on the goals of the survey, available budget for the survey, and other factors (see cell note).Probability proportional to size (PPS) cluster samplingRandomRandom selection of children (if more than one eligible child in household). Random selection of caretaker (if the chosen child has more than one caretaker).Enumerators should work in pairs; team leaders should observe enumerator pairs in a rotating cycle; team leaders should check survey forms (or databases if using mobile data collection) at the end of each day for errors; double data entry and comparison to check for data entry errorsEnumerators are instructed to show capsules to caretakers when asking whether or not their child received VAS
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Nigeria2014-15HKI post-event coverage survey report Nigeria - Ekiti and Katsina states 2014Within six weeksEkiti and Katsina states had not yet been surveyed by HKIProbability proportional to size (PPS) cluster samplingRandomRandom selection of children (if more than one eligible child in household). Random selection of caretaker (if the chosen child has more than one caretaker).Data review by survey team leaders, pre-testing mobile phone data collection tools prior to the start of the survey.Not specified
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Tanzania2015HKI post-event coverage survey report Tanzania 2015Around one monthDar es Salaam chosen due to low coverage rates in previous yearProbability proportional to size (PPS) cluster samplingRandomRandom selection of childrenNot specifiedNot specified
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