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Effects of Address Coverage Enhancement on Estimates from Address-Based Sampling Studies
Michael Jones1, J Michael Brick2, Wendy Van De Kerckhove3
1is a Senior Statistician, is a Senior Statistician with Westat, 1600 Research Blvd, Rockville, MD 20850, USA.
Journal of Survey Statistics and Methodology
|April 11, 2023
Summary
Address-based sampling (ABS) frames may have undercoverage, especially in rural areas. However, the Address Coverage Enhancement (ACE) procedure minimally impacted survey estimates due to high overall coverage rates.
Area of Science:
- Survey methodology
- Statistical sampling
- Public health research
Background:
- Address-based sampling (ABS) is widely used for surveys but can undercover certain households.
- Undercoverage is often more pronounced in rural areas or for new constructions.
Purpose of the Study:
- To investigate the Address Coverage Enhancement (ACE) procedure for supplementing ABS frames.
- To assess the impact of ACE-added addresses on survey estimates.
Main Methods:
- Calculated weighted estimates from two studies (PATH and PIAAC) with and without supplemental addresses from ACE.
- Assessed if poststratification by urbanicity reduced discrepancies between supplemented and unsupplemented frames.
Main Results:
- Noncoverage bias was minimal across both studies for various estimates.
- High coverage rates of the Computerized Delivery Sequence file contributed to minimal bias.
Conclusions:
- The ACE procedure's impact on estimates was minimal due to high overall frame coverage.
- Even with potential undercoverage, survey estimates remained largely unbiased.
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