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By surveying “clustered” households, did the study risk over-estimating the number of deaths?

April 26, 2017clustered deaths households risk study surveying

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By surveying “clustered” households, did the study risk over-estimating the number of deaths?

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Summary: Cluster sampling is a standard method for surveying unstable areas. It leads to less precision but not to any other systematic effects on the estimates. It does not “bias” the results.