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PREPARED STATEMENT OF
Mr. Chairman, Mrs. Maloney, and Members of the Subcommittee:
KENNETH PREWITT DIRECTOR, U.S. BUREAU OF THE CENSUS
Before the Subcommittee on the Census June 22, 2000 Once again, I am pleased to be here to report on the status of Census 2000 activities. The Census Bureau has now completed well over 99 percent of the nonresponse followup workload nationally. We have completed nonresponse followup in 437 of the 520 local census offices and have completed 90 percent or more of the workload in all but two offices. I believe we will complete nonresponse followup everywhere in time to meet the schedule for subsequent operations.
The Good Census
At a press briefing 2 weeks ago, I called Census 2000 "the Good Census," and I believe that accurately describes what the Census Bureau has achieved. When you initiated this series of operational hearings back in early February, just a little over 4 months ago, we were cautiously optimistic because we knew that planning and early operations were on schedule. We had done everything up to that time that needed to be done. But the road ahead was full of obstacles and of potential problems that could put the census at risk. Here are some of them and the Census Bureau's successes in meeting them:
As we entered the nonresponse followup operation about 2 months ago, the Census Bureau was faced with its most serious operational challenge yet and risks that could have affected data accuracy, data quality, and budget. Would we have enough staff and would they be highly productive? Would the public cooperate or would there be resistance? The great success the Census Bureau has had in the nonresponse followup operation is due to the dedication, enthusiasm, and resourcefulness of the census workers. They have taken their jobs seriously and worked heroically to help their communities have the best count possible, braving tough neighborhoods and, in a very few instances, tragic circumstances. I believe the success of the nonresponse followup operation is also due to a residual effect from our extensive advertising campaign and the efforts of our more than 100,000 census partners. As a result, census workers experienced limited outright hostility or resistance, although there were isolated instances and some attempts to organize resistance. We continued to advertise right through the nonresponse followup operation and stepped up efforts in some localities that were lagging. We also continued to receive tremendous support from concerned mayors and other local officials who took special steps to encourage cooperation with the enumerators. The repertoire of tools for hard-to-enumerate areas made available to the local census offices also help in completing nonresponse followup so successfully. I testified on these tools at a hearing in May, so I will just summarize here. Using a variety of demographic and operational variables from the 1990 census, Census Bureau staff identified 1990 census tracts that were hard to enumerate, difficult to recruit in, or had some other special situation that would require the application of special enumeration tools. Because the data in our planning database were nearly 10 years old, experienced field staff made the final determination of which tracts would pose problems and, more importantly, what tools would be needed to overcome them. The tools available for use included establishing Be Counted and Questionnaire Assistance Center sites, providing bilingual enumerators and/or local cultural facilitators, using special enumeration procedures, such as update/enumerate, and having enumerators work in pairs or larger teams to conduct their work. Here are some specific examples of applying special tools to hard-to-enumerate areas in the Denver and Philadelphia regions:
Thanks to the efforts of our enumerators and partners and the early work the Census Bureau did to encourage support for the census and to identify special tools for hard-to-enumerate areas, nonresponse followup has been a great success. The Census Bureau has already begun to document what worked well and suggestions for future improvements. We have debriefed recruiting staff and partnership specialists and will conduct additional debriefings over the next several weeks. This is standard procedure at the Census Bureau so that we can learn from our experiences and build in improvements for the next census.
Current Operations
While we are pleased with progress thus far, there remain several operations that will improve what is already a good census. I have said numerous times that any national statistic--including the census count--is an estimate of the truth. The challenge is to get that estimate as close to the truth as is possible. That is, there is a "true" count of the resident population of the United States on April 1, 2000. Were we to conclude the census with the completion of nonresponse followup, we would provide an estimate of that true count. It is unlikely that that estimate would be absolutely accurate, that is, identical with the true count. We believe the estimate can be moved closer to the truth. Census 2000 will improve the census estimate with three other operations. The coverage edit followup does so by reconciling population count discrepancies. The coverage improvement followup operation does so by enumerating housing units added to the address list too late to have been included in the initial nonresponse followup operation. And the Accuracy and Coverage Evaluation (A.C.E.) does so by dual system estimation in a procedure that measures the number of persons missed and the number erroneously included in any of the prior census operations. Coverage Edit Followup.--The coverage edit followup operation, which began in early May and will be completed in late July, is an important coverage check being conducted by telephone from 13 calling centers around the country. The trained telephone agents are calling two types of households for which we have the telephone numbers. The first are those households for which responses were received by mail or Internet and there are what we call "population count discrepancies." A "population count discrepancy" occurs when there is a difference between the number of persons in the household that the respondent reported in Question 1 ("How many people were living or staying in this house, apartment, or mobile home on April 1, 2000?") and the number of persons for which data were reported. We are also using this process to follow up on households with more than six people. The census questionnaire only has room to report data for six people, so it is important that in this operation we collect data for the additional members of these large households, so their characteristics can be included in the census. Coverage Improvement Followup Operation.--In 342 of the local census offices where we have completed nonresponse followup--this is the number that made a cutoff date of June 15--we are now beginning the coverage improvement followup operation. Selection and training for supervisors is going on on a flow basis now, and enumerators will be trained and in the field the first week of July. We are conducting this operation in waves. As additional offices complete nonresponse followup, they will enter the next wave, which will be in the field 2 weeks after the first wave. A third wave is planned, if necessary. The coverage improvement followup operation can be thought of as a final, essential cleanup operation that rechecks some of the enumerators' earlier work and enumerates some housing units that were added to our address list too late to be included in earlier operations. For example, enumerators will recheck some housing units that were identified as vacant or that were deleted during nonresponse followup. Census Bureau experience from previous censuses indicates that some enumerators erroneously classify occupied housing units as vacant or delete them, so this is an important step to assure a full and accurate census. Enumerators will visit for the first time housing units that were added in our "new construction" program, which was a partnership effort with local governments conducted in the spring of this year. And they will enumerate some housing units added during update/leave or the appeals process for the local update of census addresses, as well as households that submitted blank forms. The coverage improvement field work is scheduled to last 3 weeks in each wave. Procedures and quality controls are very similar to those for the nonresponse followup operation, including the requirement that enumerators make up to six attempts to find someone at a housing unit that appears to be occupied. Personal Visit Interviewing for the Accuracy and Coverage Evaluation.--As I mentioned at the May 19 hearing before this Subcommittee, to provide sufficient data to compare the A.C.E. to the initial census, the Census Bureau must conduct interviews to collect data from each of the housing units that were independently listed in the A.C.E. listing operation. We initiated the interviewing with a telephone phase in late April and completed about 90,000 interviews by telephone, or about 29 percent of the total workload of about 314,000 cases. We did not start personal visit interviewing during nonresponse followup to preserve independence between the A.C.E. and the initial census enumeration. Personal visit interviewing is now beginning in those local census offices that have completed nonresponse followup. Personal interviews are conducted only with a household member during the first 3 weeks that the case is available for interviewing. If an interview with a household member is not obtained after 3 weeks, interviewers will attempt to interview another knowledgeable person. During the latter part of the operation, the best interviewers are used to convert as many noninterview cases as possible to completed interviews, either by talking to a household member or another knowledgeable person. This nonresponse conversion has been planned to improve the completeness of data for matching. We expect to complete personal visit interviewing in early September.
Nonresponse Followup "Closeout"
Although we are now moving into other field operations in local census offices that have completed nonresponse followup, we are committed to fully applying our procedures to account for every remaining address in the local census offices that have not yet finished. Those procedures, as I have testified previously, are extensive and include making up to six attempts to complete the enumeration of each housing unit. The procedures also include extensive quality assurance procedures and supervisory controls. Daily production levels begin to decrease toward the end of nonresponse followup. Sometimes enumerators completed the easier cases first, finished the work closest to their homes first, or believed that the quicker they finished their assignment, the sooner they would be out of work. In order to bring the operation to closure within the scheduled 10 weeks, we look at areas within each local census office that are lagging behind. We also implement a procedure known as "final attempt." When the area covered by a crew leader has completed 95 percent of its workload, "final attempt" begins and the crew leader consolidates the remaining work and gives it to the most productive and dependable enumerators. When an entire local census office reaches an average 95 percent rate of completion, the Regional Director instructs the office to begin "final attempt" within 2 days. During "final attempt" enumerators then make one final visit to each outstanding address that has already been visited at least two times and to some of the housing units for which only minimal data was earlier collected to complete as much of the questionnaire as possible. If an address has only been visited once, an enumerator will make up to two additional visits during "final attempt." The intent of "final attempt" is to resolve all outstanding cases within a few days, but nonresponse followup is not over until a questionnaire is completed and checked into the local census office for every unit. You asked in your letter of invitation about any serious problems in any of our offices. I will be happy to answer any specific questions you may have about that.
Closing
I would like to return now to the earlier discussion about "the Good Census." A good census involves three elements. The examples of successes I mentioned earlier relate to two of these, namely operational robustness and a dedication to including everyone in the count. The third element of a good census involves openness, transparency, and public scrutiny, which in turn can lead to public trust in the process. This has been the most open and transparent census in history; every detail has been and is being scrutinized. We welcome that scrutiny because we believe it will dispel any notion that there is or could be any political manipulation of the final results. At a press conference last week, in the spirit of openness, I made public a document entitled "Accuracy and Coverage Evaluation: Statement on the Feasibility of Using Statistical Methods to Improve the Accuracy of Census 2000." This statement was prepared after extensive discussions with the Census Bureau's senior staff and after review of all relevant documents. The document sets forth the rationale for the Census Bureau's preliminary determination that (1) statistically corrected census data can be produced within the time frame required by law and (2) statistically corrected data will be more accurate. At the same press conference, Commerce Department General Counsel Andrew Pincus described the Secretary of Commerce's proposed regulations that would delegate to the Director of the Census Bureau the authority to make the final decision on whether to use statistical sampling to correct the census counts (published June 20, 2000 at 65 Federal Register 38370). This proposal will help make certain that the final decision is fully informed by the statistical experts at the Census Bureau. The final decision will follow a review of the A.C.E. A committee of distinguished senior career professionals will study the results of the A.C.E. and make its recommendation to the Director. This recommendation will be made public. After considering the recommendation, the Director will make the final decision. Mr. Chairman, I will now answer any questions. |