Census Survey of Maricopa County Arizona Sampling Listing

Census Survey of Maricopa County, Arizona Sampling, Listing & Address File Creation October 7, 2004 Richard Frazier, U. S. Census Bureau

2005 Census Survey of Maricopa County, Arizona Listing and Sampling • Annexation • Listing New Construction • MAG Review of Final Boundaries 2

2005 Census Survey of Maricopa County, Arizona • MAG Review of Sample Blocks • Listing Operation in Sample Blocks • Method of Listing (Paper or Electronic) • Quality Assurance to Minimize Non-sample Error • GQ Address That Is Found to Be a Housing Unit 3

1. Annexation - We will use the 2004 boundary annexation survey results reported by the jurisdictions and changes reported by MAG to census as of September 30, 2004 for developing the listing and sampling frame. These are the blocks that will be eligible for sample selection in the corresponding jurisdictions. 4

- . Census is discussing with MAG the use of the 2005 Boundary Annexation Survey results plus any updates that MAG provides between January and August, 31, 2005 to produce estimates. We will depend on MAG to aid census with identifying split blocks where boundaries change and determining whether units selected for sample are inside or outside of the sample block. 5

2. Listing new construction in sample blocks - We will list all new construction in sample blocks if the units have been completed by census definition. That is, all exterior walls, roof windows and doors are complete. 6

- These units will be included in the sampling process. We will make every attempt to get new construction that is completed in late July and early August, into the sampling frame. 7

3. MAG and its’ member agencies review of the final block boundaries - MAG and its’ member agencies can review the final block boundaries. MAG will work with census to resolve discrepancies. For complete blocks it should be just a matter of MAG and census agreeing which jurisdiction the block is in. 8

- For Split blocks MAG can help Census determine which block part the selected sample unit is in. This can be done in September 2005 after the sample has been selected. 9

4. Determining which households are to be surveyed - The block sample selection and the housing unit sample selection processes determines which housing units are surveyed. - Sample blocks are updated by canvassing the block, adding new units to the listing and deleting unit that no longer exist from the listing. 10

- Listed units are sampled in our processing center in Indiana using instructions provided by headquarters. 11

5. Block sample selection - All blocks in a jurisdiction have a chance for selection except water blocks which are excluded. Blocks that have zero or small housing unit counts from census are combined with blocks with larger housing unit counts. This process gives all blocks a chance for selection. 12

6. 6. MAG and its' member agencies review of selected sample blocks - Block sampling will be completed in late October 2004. MAG and its’ member agencies can review the sample blocks after that time. 13

7. The address listing operation - Sample blocks are updated by census listers using a listing that has housing units from the 2000 census plus updates after the census as a base. The lister canvasses the block adding and deleting units. 14

8. Listing addresses in the field (electronically or by paper? ) - The updating is done on paper listing (show a listing sheet). 15

9. Selecting households within the sample block 10. Household are clerically selected from the listing sheets in an operation conducted in our processing center in Indiana. 16

10. Assurance programs to minimize nonsampling error 11. - Field observation - A crew leader accompanies a lister and observes the lister’s work. 12. - Local Office review of lister’s work - Check for critical and non-critical error. 13. 17

- Listing Check - Independent relisting of the sample block by a senior field representative. - Washington Staff on-site to assist listers. 18

11. Group Quarters addresses that are found to be Housing Units - Group Quarters that are found to be Housing units will most likely have had a chance to be selected in the HU frame. 19

- GQs that change to HUs between listing and interview should be rare and will be identified in the report. We will not send out a HU questionnaire to the household. 20