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General User Notes
As in all surveys, the data in this release are subject to sampling variability and other sources of error, such as survey design flaws, respondent classification errors, and data processing mistakes. The Census Bureau has taken steps to minimize errors, and analytical statements have been tested and meet statistical standards. However, because of methodological differences, use caution when comparing these data with data from other sources.
All demographic surveys suffer from undercoverage of the population. This undercoverage results from missed housing units and missed persons within sample households. Compared to the level of the 1990 Decennial Census, overall CPS undercoverage is about 8 percent. Undercoverage varies with age, sex, and race. For some groups such as 20 to 29 year old Black males, the undercoverage is as high as 34 percent compared to the Census. The population controls that are used in this survey have been adjusted for undercount in the decennial census and partially correct for the bias due to undercoverage. However, the final impact of the weighting procedures used by the Census Bureau on the estimates is unknown. The estimates for data beginning in 1994 are based on population controls using results from the 1990 census brought forward to the survey date.
The information on the Hispanic population shown in this report was collected in the 50 states and the District of Columbia and does not include residents of Puerto Rico.
More detailed information on the design of this survey and problems associated with collecting voting statistics can be found in Current Population Reports, Series P20-466, "Voting and Registration in the Election of November 1992." Please consult this previous report for general information on the definitions and explanations used in this release.