Preparing For the 2000 Census Interim Report II (1997) / Chapter Skim
Currently Skimming:
6 Integrated Coverage Measurement: Tackling the Differential Undercount
6 Integrated Coverage Measurement: Tackling the Differential Undercount
Pages 46-61
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 46... ...
Dissimilarities between the 1950 PES and the 1995 Census Plus, an alternative integrated coverage measurement methodology, are discussed below.
|
From page 47... ...
rather than a decision on which of two sets of numbers to use after the census. To emphasize the interdependence of all aspects of the census process, the coverage measurement component of the procedure is called "integrated coverage measurement." The Census Bureau's intention is to do an adequate evaluation of the methodology before the census so that the quality of the integrated coverage measurement can be determined before the census and the decision can be made in advance on whether to incorporate its results into the final enumeration.
|
From page 48... ...
, then the measurement process will have to project from a sample of cases to the entire population in the domain. The Census Bureau is currently considering two integrated coverage measurement strategies: a Post-Enumeration Sunrey (PES)
|
From page 49... ...
conducting operations in a sample of blocks in which nonresponse follow-up is also conducted for 100 percent of the nonresDondin~ units (21 - ~ ~ r ~ - ~ ~ I ~ ~ ~ i ~ ~ VJ creating an independent listing of housing units for those blocks (i.e., one that does not depend on the address lists used for the initial census)
|
From page 50... ...
A major operational advantage of CensusPlus, if it can be successfully implemented, is that field work can be completed relatively quickly because only one reinterview is required for each household. Both the Census-Plus and PES methodologies were tested in the 1995 census test, using the same set of integrated coverage measurement interviews.
|
From page 51... ...
Thirteen evaluation studies were conducted; an excellent summary of their conclusions is given in Vacca, Muiry, and Killion (19961. The Census Bureau should be congratulated for completion of these evaluations, which have been extremely helpful in assessing the integrated coverage measurement methodologies and developing improved approaches.
|
From page 52... ...
Approximately 22 percent of integrated coverage measurement interviews in Oakland were conducted without any census roster in the CAPI instrument; this is a rough estimate based on a restricted sample used in the evaluation interview, described below (West and Griffiths, 1996)
|
From page 53... ...
In housing units with at least one match between the initial census roster and the integrated coverage measurement independent roster, 3 percent of the people who were determined by the evaluation interview to be residents were not included on the integrated coverage measurement resolved roster. In housing units for which no census rosters were loaded into the integrated coverage measurement CAPT instruments, the corresponding figure was 12 percent; for those where census rosters were loaded but there were no matches, the figure was ~ ~ percent.
|
From page 54... ...
part of the integrated coverage measurement interview. This question implies that names that appeared on the census roster but not on the integrated coverage measurement independent roster would tend to be resolved as nonresident and therefore be left off the resolved roster, reducing the Census-Plus estimates.
|
From page 55... ...
Another feature of the integrated coverage measurement interview process is that during the reconciliation phase, the interviewer "probed" the respondent to obtain information to determine the residency status of people on either the census roster or the integrated coverage measurement roster (but not both) , as well as to confirm the status of matching people.
|
From page 56... ...
of a sample of noninterviewed households from Oakland suggests that these households tended to be smaller than those contacted during integrated coverage measurement and that the match rates of people in these households to people in the corresponding census rosters tended to be lower than the dual-system estimation match rates for the block clusters in which the households were located. Thus, addition of the noninterview follow-up data to the data used for CensusPlus and the PES/DSE lowered the Census-Plus adjustment factor from 1.005 to 0.978 but raised the PES/DSE adjustment factor from 1.0866 to 1.1081 (Vacca, MuIry, and Killion, 1996~.
|
From page 57... ...
For example, the independent listing operation for integrated coverage measurement could sensitize residents of integrated coverage measurement blocks to the census, or the nonresponse follow-up and integrated coverage measurement interviewers could run into each other in the field. These interactions are referred to as "contamination" of the census by integrated coverage measurement and would only be a problem if integrated coverage measurement and nonresponse follow-up overlap in the same blocks.
|
From page 58... ...
Each type of discrepancy between the initial integrated coverage measurement interview and the census roster is handled with a distinct set of questions tailored to that type of case, and there is also a set of questions designed for wholehousehold nonmatches (arising when the interviewer has the wrong roster or no roster or when a family moved)
|
From page 59... ...
In particular, the integrated coverage measurement interviewer might attempt to determine whether individuals who were listed on the census roster but not in the independent reinterview were actually census day residents, and likewise whether individuals who were listed in the independent roster but not in the census were residents on census day. Although some additional field follow-up might be necessary, it should involve fewer cases than with traditional PES methodology and therefore be completed more quickly.
|
From page 60... ...
A discussion of administrative records is in Chapter 7. Sample Design and Estimation Methods We have focused on issues concerning the operational aspects of integrated coverage measurement because the 1995 and 1996 census tests were small-scale efforts that resemble the decennial census at the micro level but not at the macro level of sample design and estimation procedures.
|
From page 61... ...
We also look forward to research on other features of the estimation procedure, such as the use of indirect estimates for substate domains. Recommendation: The Census Bureau should perform the calculations necessary to clarify the effect of using direct state estimates on the sample sizes required for state estimates for the 2000 census and the consequences of these requirements for the accuracy of other estunates affected by integrated coverage measurement.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.