data quality and the acs introduction to the acs aggregator
DESCRIPTION
Data Quality and the ACS Introduction to the ACS Aggregator. Lisa Neidert January 18, 2012 PSC Data Workshop Ann Arbor, MI. Synopsis . Census long-form data were not as good as you thought ACS data are worse Collapse cells or combine geographies Tool: ACS Aggregator [Beta]. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Data Quality and the ACS Introduction to the ACS Aggregator](https://reader036.vdocuments.site/reader036/viewer/2022081515/568166fb550346895ddb5f39/html5/thumbnails/1.jpg)
Data Quality and the ACS
Introduction to the ACS Aggregator
Lisa Neidert
January 18, 2012PSC Data WorkshopAnn Arbor, MI
![Page 2: Data Quality and the ACS Introduction to the ACS Aggregator](https://reader036.vdocuments.site/reader036/viewer/2022081515/568166fb550346895ddb5f39/html5/thumbnails/2.jpg)
Synopsis
Census long-form data were not as good as you thought
ACS data are worse
Collapse cells or combine geographies
Tool: ACS Aggregator [Beta]
![Page 3: Data Quality and the ACS Introduction to the ACS Aggregator](https://reader036.vdocuments.site/reader036/viewer/2022081515/568166fb550346895ddb5f39/html5/thumbnails/3.jpg)
ACS Data Quality Issues
Sample Size 1 in 8 instead of 1 in 6
Mixed Mode Non-response is a ~1 in 3 sample Uneven response across geography
Population Controls Only at state/county Long-form data had short-form
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Geographic Variation in ACS mail response: by pseudo county (2006-2008)
![Page 5: Data Quality and the ACS Introduction to the ACS Aggregator](https://reader036.vdocuments.site/reader036/viewer/2022081515/568166fb550346895ddb5f39/html5/thumbnails/5.jpg)
Census Bureau Solutions
Increase sample size 3.4 million households
Re-distribute sample Small census tracts + Low response areas + Large census tracts; high response areas –
Research
Education
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PSC ACS Aggregator
Helps users re-calibrate margins of error after combining geographies or collapsing cells
![Page 7: Data Quality and the ACS Introduction to the ACS Aggregator](https://reader036.vdocuments.site/reader036/viewer/2022081515/568166fb550346895ddb5f39/html5/thumbnails/7.jpg)
Statistical Review
Compass Series: Technical Appendix
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Practice Data
Seattle: Capitol Hill Neighborhood Table B11001
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Combine Geographies
Enter Name, Estimate, MOE for all geographies
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Collapse Cells
Enter Name, Estimate, MOE for each column Geographies will be repeated