1 Association of Public Data Users September 2009 Overview of Coverage Improvement Activities in Census 2010 Robin A. Pennington Assistant Division Chief for Census Design Decennial Statistical Studies Division

2 Presentation Outline: Coverage Improvement Activities Address List Development Housing Unit Duplicates Residence Rules Presentation Coverage Followup

3 Address List Development Address list building operations sequential –All submissions from Local Update of Census Address list participants were validated in Address Canvassing Deletes verified within operations, when possible Group Quarters address list developed in conjunction with Housing Unit address list

4 Housing Unit Duplicates Census returns will be used to identify person duplicates within the census –A certain class of these associated with housing-level problems will be included in a Field Verification operation to determine final census status –Expected workload of these cases – 400K housing units

5 Residence Rules: The Mailback Questionnaire

6 The Undercount Question: Mailback Questionnaire

7 The Overcount Question: Mailback Questionnaire

8 Coverage Followup CFU is an expansion of Census 2000 Coverage Edit Followup –Large households –Count discrepancies Additional categories of cases in 2010: –Undercoverage question –Overcoverage question –Administrative records

9 The CFU Interview Telephone interview –Read list of people reported on the Census form –Update household roster –With updated/verified roster, probe to determine if anyone lived elsewhere –Determine if people with multiple residences should be counted here

10 Summary of Coverage Improvement Activities Housing Unit coverage –Address list development –Housing unit duplicates Person coverage –Residence rules presentation –Coverage Followup