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Case Study 2: Choosing Between ACS 1-, 3-, and 5-Year Estimates

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Case Study 2: Choosing Between ACS 1-, 3-, and 5-Year Estimates

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Case Study 2: Choosing between ACS 1-, 3-, and 5-Year Estimates
Download Case Study 2: Choosing between ACS 1-, 3-, and 5-Year Estimates [PDF - <1.0 MB]

This case study, presented at the 2009 Population Association of America ACS Workshop, defines multi-year estimates, identifies many users having choices as the main issue in choosing between ACS 1-, 3-, and 5-year estimates, and highlights three key concepts:

  1. Multiyear estimates are more reliable.
  2. Working with data from small population groups.
  3. Trade-off between reliability and currency.

Page Last Revised - October 8, 2021
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