Description & Citation--Study No. 13400 | | | ICPSR Study No.: | 13400 |
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Persistent URL:
| http://dx.doi.org/10.3886/ICPSR13400 |
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| | | Title: | Census of Population and Housing, 2000 [United States]: Public Law (P.L.) 94-171 Adjusted Data |
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| | | Principal Investigator(s): | United States Department of Commerce. Bureau of the Census |
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| | | Series: | Census of Population and Housing, 2000 [United States] Series |
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| | | Bibliographic Citation: | U.S. Dept. of Commerce, Bureau of the Census. CENSUS OF POPULATION AND HOUSING, 2000 [UNITED STATES]: PUBLIC LAW (P.L.) 94-171 ADJUSTED DATA [Computer file]. 2nd ICPSR release. Washington, DC: U.S. Dept. of Commerce, Bureau of the Census [producer], 2002. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2003. doi:10.3886/ICPSR13400 |
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| | | | Summary: | The numbers contained in this study are released pursuant
to the order of the United States Court of Appeals for the Ninth
Circuit in Carter v. Department of Commerce, 307 F.3d 1084. These
numbers are not official Census 2000 counts. These numbers are
estimates of the population based on a statistical adjustment method,
utilizing sampling and modeling, applied to the official Census 2000
figures. The estimates utilized the results of the Accuracy and
Coverage Evaluation (A.C.E.), a sample survey intended to measure net
over- and undercounts in the census results. The Census Bureau has
determined that the A.C.E. estimates dramatically overstate the level
of undercoverage in Census 2000, and that the adjusted Census 2000
data are, therefore, not more accurate than the unadjusted data. On
March 6, 2001, the Secretary of Commerce decided that unadjusted data
from Census 2000 should be used to tabulate population counts reported
to states and localities pursuant to 13 U.S.C. 141(c) (see 66 FR
14520, March 13, 2001). The Secretary's decision endorsed the
unanimous recommendation of the Executive Steering Committee for
A.C.E. Policy (ESCAP), a group of 12 senior career professionals
within the Census Bureau. The ESCAP, in its recommendation against the
use of the statistically adjusted estimates, had noted serious
reservations regarding their accuracy. In order to inform the Census
Bureau's planned October 2001 decision regarding the potential use of
the adjusted estimates for non-redistricting purposes, the agency
conducted extensive analyses throughout the summer of 2001. These
extensive analyses confirmed the serious concerns the agency had noted
earlier regarding the accuracy of the A.C.E. estimates. Specifically,
the adjusted estimates were determined to be so severely flawed that
all potential uses of these data would be inappropriate. Accordingly,
the Department of Commerce deems that these estimates should not be
used for any purpose that legally requires use of data from the
decennial census and assumes no responsibility for the accuracy of the
data for any purpose whatsoever. The Department, including the
U.S. Census Bureau, will provide no assistance in the interpretation
or use of these numbers. The collection contains four tables: (1) a
count of all persons by race (Table PL1), (2) a count of Hispanic or
Latino and a count of not Hispanic or Latino by race of all persons
(Table PL2), (3) a count of the population 18 years and older by race
(Table PL3), and (4) a count of Hispanic or Latino and a count of not
Hispanic or Latino by race for the population 18 years and older
(Table PL4). |
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| | | Subject Term(s): | census data, ethnicity, household composition, housing, housing conditions, population, states (USA) |
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| | | Geographic Coverage: | Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Puerto Rico, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, United States, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming |
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| | | Time Period: | 2000 |
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| | | Date(s) of Collection: | 2000 |
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| | | Universe: | All persons and housing units in the United States in
2000. |
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| | | Data Type: | census/enumeration data |
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| | | Data Collection Notes: | (1) The data are provided in three segments (files)
per state: the Geographic Header, Tables PL1 and PL2, and Tables PL3
and PL4. The Geographic Header segments are fixed-format ASCII text
files, while the Table segments are comma-delimited ASCII files. The
Geographic Header has 80 variables and the Table segments have 149
variables each, for a total of 378 variables when the segments are
combined. (2) The SAS Merge Program (Part 90) is provided, but not
supported, by the United States Census Bureau. Users will need to
merge the three segments for each state into a SAS dataset to use the
data effectively. (3) The data file part numbers are not consecutive.
They correspond to FIPS codes for states. (4) The codebook and record
layout are provided by the principal investigator as Portable Document
Format (PDF) files. The PDF file format was developed by Adobe Systems
Incorporated and can be accessed using PDF reader software, such as
the Adobe Acrobat Reader. Information on how to obtain a copy of the
Acrobat Reader is provided on the ICPSR Web site. |
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| | | | Data Source: | self-enumerated questionnaires |
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| | | | Note: | A list of the data formats available for this study can be found in the
summary of holdings. Detailed file-level information (such as record length, case count, and variable count) is listed in the
file manifest. |
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| | | Original ICPSR Release: | 2003-04-25 |
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| | | Version History: | The last update of this study occurred on 2006-01-12. |
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| 2006-01-12 - All files were removed from dataset 90 and flagged as study-level files, so that they will accompany all downloads. |
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| 2006-01-12 - All files were removed from dataset 86 and flagged as study-level files, so that they will accompany all downloads. |
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| 2006-01-12 - All files were removed from dataset 84 and flagged as study-level files, so that they will accompany all downloads. |
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| 2006-01-12 - All files were removed from dataset 83 and flagged as study-level files, so that they will accompany all downloads. |
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| 2006-01-12 - All files were removed from dataset 81 and flagged as study-level files, so that they will accompany all downloads. |
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| 2004-08-26 - All the data definition statements (Parts 83, 84,
and 90) were replaced because of errors. The codebook was replaced
with an updated one from the Bureau of the Census. |
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| | | Dataset(s): | - DS1: Alabama
- DS2: Alaska
- DS4: Arizona
- DS5: Arkansas
- DS6: California
- DS8: Colorado
- DS9: Connecticut
- DS10: Delaware
- DS11: District of Columbia
- DS12: Florida
- DS13: Georgia
- DS15: Hawaii
- DS16: Idaho
- DS17: Illinois
- DS18: Indiana
- DS19: Iowa
- DS20: Kansas
- DS21: Kentucky
- DS22: Louisiana
- DS23: Maine
- DS24: Maryland
- DS25: Massachusetts
- DS26: Michigan
- DS27: Minnesota
- DS28: Mississippi
- DS29: Missouri
- DS30: Montana
- DS31: Nebraska
- DS32: Nevada
- DS33: New Hampshire
- DS34: New Jersey
- DS35: New Mexico
- DS36: New York
- DS37: North Carolina
- DS38: North Dakota
- DS39: Ohio
- DS40: Oklahoma
- DS41: Oregon
- DS42: Pennsylvania
- DS44: Rhode Island
- DS45: South Carolina
- DS46: South Dakota
- DS47: Tennessee
- DS48: Texas
- DS49: Utah
- DS50: Vermont
- DS51: Virginia
- DS53: Washington
- DS54: West Virginia
- DS55: Wisconsin
- DS56: Wyoming
- DS72: Puerto Rico
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