Can Address Coverage Enhancement (ACE) Help Alleviate Undercoverage in In-Person Survey Sampling?

Use of address-based sampling (ABS) frames for face-to-face surveys can suffer from undercoverage. This undercoverage has typically been more prominent in rural areas but can also occur in urban areas where recent construction of households has taken place. Procedures have been developed to supplement ABS frames in order to address this undercoverage. A new article coauthored by Westat staff, Effects of Address Coverage Enhancement on Estimates from Address-Based Sampling Studies in the Journal of Survey Statistics and Methodology, investigates a procedure called address coverage enhancement (ACE), which supplements the ABS frame with addresses not found on the frame, and the resulting effects the addresses added to the sample through ACE have on estimates.

Michael Jones, M.S., J. Michael Brick, Ph.D., and Wendy Van de Kerckhove, M.A., use weighted estimates in 2 studies to analyze noncoverage bias. “Our findings show that the noncoverage bias was likely minimal across both studies for a range of estimates,” explains Mr. Jones. “The main reason is because the computerized delivery sequence (CDS) file coverage rate is high; when the coverage rate is high, only very large differences between the covered and not covered will result in meaningful bias.”

Want to work with us?
You’ll be in great company.

About Us Careers

Westat Employees.
Westat Employee.
AAA Foundation for Traffic Safety
Baltimore Metropolitan Council
Centers for Disease Control and Prevention
Centers for Medicare & Medicaid Services
Chicago Metropolitan Agency for Planning
DC Public Schools
Georgia Department of Transportation
Internal Revenue Service
Leadership Montgomery
Maryland Cancer Registry
Michigan Department of Health and Human Services
National Science Foundation
NYC Mayor’s Office for Economic Opportunity
Organization for Economic Cooperation and Development
Robert Wood Johnson Foundation
SiriusXM
Social Security Administration
Substance Abuse and Mental Health Services Administration
Teach for America
Texas Education Agency
The Johns Hopkins University
The National Institutes of Health
The Verizon Foundation
Toyota
U.S. Department of Agriculture
U.S. Department of Education
U.S. Department of Health and Human Services
U.S. Department of Justice
U.S. Department of Transportation
U.S. Department of Veterans Affairs
University of Maryland Baltimore Campus
University of Michigan
University System of Maryland
Explore Our Clients

Please wait...

Forbes 2021 The Best Employers for Women Powered by StatistaForbes 2021 The Best Employers for Diversity Powered by StatistaForbes 2021: America's Best Midsize Employer Powered by Statista

Westat is an Equal Opportunity Employer and does not discriminate on the basis of race, creed, color, religion, sex, national origin, age, veteran status, disability, marital status, sexual orientation, citizenship status, genetic information, gender identity or expression, or any other protected status under applicable law. Notices to Employees & Applicants.