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7 Assessment of Basic and Long-Form-Sample Data
Pages 269-302

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From page 269...
... economic characteristics. The basic items (or complete-count items)
From page 270...
... survey responses for most questionnaire items for one ranclomly chosen member of each househoIcl. Unlike previous censuses, the 2000 Content Reinterview Survey clic!
From page 271...
... long-form-sample items, respectively. Appendix F reviews alternative item imputation procedures that may be more accurate than the current "hot-clack" procedures.
From page 272...
... For example, first name was used to assign values to a large fraction of the records with missing sex;5 answers to the race question were used to assign values to some cases with missing Hispanic origin; and answers to questions on housing costs were used to assign values to a large fraction of long-form cases missing housing tenure. Codes on the 1990 census records did not distinguish between imputations and assignments, so our tables for the 2000 census sometimes show both types of rates the imputation/assignment rate is comparable to 1990 and indicates nonresponse;6 the imputation rate per se indicates the fraction of cases that required a donor record to supply missing values.
From page 273...
... . 7-B.1 Imputation Rates for Complete-Count Basic Items Table 7.1 provides imputation rates for the basic demographic items from the 2000 ant!
From page 274...
... SOURCE: Tabulations by U.S. Census Bureau staff from the 2000 and 1990 Household Census Edited Files (HCEF)
From page 275...
... For the 10 percent of census tract neighborhoods with the highest percentages of basic item imputations, the imputation rates were one-half to three times higher than the total population rates shown (data not shown)
From page 276...
... provides information on patterns of missing responses in 2000 census records; that is, percentages of person records that are missing one, two, or three or more of the Prom tabulations by U.S. Census Bureau staff of the 2000 and 1990 Household Census Edited Files, provided to the panel in spring 2003.
From page 277...
... E-sample and underestimate the extent of nonresponse in the census; in contrast, the P-sample achieved a high level of reporting of all five basic person items for all neighborhood tones 92 to 95 percent. A, -a r 7-B.3 Consistency of Responses to Basic Items Comparing census cases in the E-sample that matched P-sample cases revealed Tow rates of inconsistent reporting of basic items for the household population as a whole.
From page 278...
... block cluster) type determined by Census Bureau staff from 1990 characteristics (A.C.E.
From page 279...
... for small geographic areas. However, because overall imputation rates were Tow, the effects of imputation error were not large for the household population as a whole.
From page 280...
... P-sample cases could be helpful in this regard. The census had higher missing data rates for basic items in 2000 than in 1990.
From page 281...
... . Rates of inconsistent reporting for the basic items (as measurer!
From page 282...
... Consequently, a full unclerstancIing of the completeness of response in the long-form sample requires examining not only item imputation rates but also weighting acljustments (see Section 7-C.54. Generally, imputation rates for basic items were lowest for the P-sample ant!
From page 283...
... Census Bureau staff from the 2000 and 1990 Sample Census Edited Files (SCEF) , and the C2SS file, provided to the panel spring 2003.
From page 284...
... In contrast, for the C2SS, most personitem imputation rates were lower for enumerator returns than for self returns. The exception for the person items shown was income, for which enumerator returns hac!
From page 285...
... Census Bureau staff from the 2000 and 1990 Sample Census Edited Files (SCEF) , provided to the panel spring 2003.
From page 286...
... 7-C.3 Missing Data Patterns for Additional Items No analysis has been concluctec! to ciate of patterns of response ant!
From page 287...
... Census Bureau staff from the 2000 Sample Census Edited File (SCEF) and the Census 2000 Supplementary Survey edited file, provided to the panel spring 2003.
From page 288...
... 7-C.4 Consistency of Responses to Long-Form Items The 2000 Content Reinterview Survey provides an inclex of inconsistency for most of the Tong-form questionnaire items, comparing responses to the census with responses to the Content Reinterview Survey for 20,000 recipients of the 2000 Tong form. The inclex that was computer!
From page 289...
... the Content Reinterview Survey tent! to inflate the value of the index more than would be true for items that are more evenly clistributecI.
From page 290...
... 290 THE 2000 CENSUS: COUNTING UNDER ADVERSITY Table 7.6 Index of Inconsistency for Selected Long-Form-Sample Items, 2000 and 1990 Content Rei ntervi ew S u rveys (weighted ~ Content Reinterview Survey Item 2000 Census 1990 Census Hispanic Origina 17.2 12.2 Racea 23.1 16.3 School Enrollment 13.5 17.3 Educational Attainment 36.5 32.3 Ancestry 30.7 26.5 Speaks Non-English Language 22.7 26.9 English-Speaking Ability 59.5 60.3 Place of Birth 3.2 4.9 Citizenship 9.8 10.9 Year of Entry 18.9 23.0 Self-Care Disability 51.7 73.6 Mobility Disability 64.5 47.1 Work Disability 80.5 45.7 Veteran Status 18.7 8.5 Length of Service 41.6 58.8 Work Last Year 24.3 45.9 Weeks Worked 57.5 56.8 Usual Hours Worked 34.3 40.1 Housing Tenurea 19.4 13.3 Units in Structureb 20.8 21.9 Year Structure Built 29.3 40.6 Complete Plumbing Facilities 85.2 53.8 Heating Fuel 17.7 14.0 Vehicles Available 37.1 32.1 Business onPropertyb 65.8 50.0 Lot Size 20.9 27.8 Agricultural Sales 52.0 41.7 Monthly Rentb 23.2 34.7 Meals in Rent 38.2 71.6 NOTE: The index of inconsistency is the ratio of the simple response variance to the total variance for an item times 100; for items with three or more categories, it is the aggregate index for the whole item; it ranges from 0 to 100 (see Singer and Ennis, 2003:7-9)
From page 291...
... As we described above, the 2000 long form led off with all of the i3From tabulations by U.S. Census Bureau staff from the 2000 Sample Census Edited File provided to the panel in spring 2003.
From page 292...
... SOURCE: Tabulations by U.S. Census Bureau staff from the 2000 and 1990 Sample Census Edited Files (SCEF)
From page 293...
... Census Bureau staff from the 2000 and 1990 Sample Census Edited Files (SCEF) , provided to the panel spring 2003.
From page 294...
... higher item imputation rates in 2000 than the basic items. More serious, the longform-sample ciata quality, as measurec!
From page 295...
... Missing ciata rates also varied widely among population groups and geographic areas. By comparison with 1990, missing data rates were higher in 2000 for most Tong-form-sample items asked in both years ant!
From page 296...
... . Recommendation 7.2: The Census Bureau should make users aware of the high missing data rates and measures of inconsistent reporting for many long-form sample items, and inform users of the 2000 census long-formsample data products (Summary Files 3 and 4 and the Public Use Microdata Samples)
From page 297...
... The great extent of missing data among group quarters residents in 2000 raises a question as to whether the Census Bureau shouIc! have published long-form-sample estimates for some or all types of group quarters.
From page 298...
... 298 in Q n LAO ~0 in in a)
From page 299...
... . The 2000 rates were much higher than missing data rates for household members and considerably higher than missing ciata rates for group quarters residents in 1990.
From page 300...
... in the imputation of employment status for people living in noninstitutional group quarters because of a particular pattern of missing data. The result was a substantial overestimate of unemployment rates for these people, so much so that the Census Bureau reissues!
From page 301...
... . Such separation would make it easier for data users to compare census and ACS estimates with household surveys and would facilitate comparative assessments of data quality for these two populations by the Census Bureau and others.
From page 302...
... . We discuss differences between the 1990 and 2000 census questions on race and Hispanic origin, the implications of those differences, and the results (8-C)


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