Status:Closed    Asked:Dec 09, 2016 - 12:53 PM

Census samples: sampling design and data quality

Are the micro-data 5% Census samples drawn entirely at random? Or alternatively, does the randomization condition on data quality, upweighting observations with unaltered responses? I ask because I would like to understand whether summary statistics of the data quality flag variables in the Census sample micro-data are informative about the imputation rate of the Census variables overall in the corresponding aggregate Census Summary File datasets.


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Staff Answer




The sampling procedures used to produce the public use samples have varied over time. Detailed descriptions of these sampling procedures can be found on the IPUMS-USA website here. Each sampling procedure includes some element of randomness with additional efforts made to ensure represtetiveness, however I do not believe data quality or completeness has ever been used as a condition for selection.

I hope this helps.


Dec 12, 2016 - 12:05 PM

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