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MATH 1308 Ch. 22
Statistics, Ch. 22 - Unemployment
14
Sociology
Not Applicable
04/07/2005

Term
 PSU
Definition
 Primary Sampling Unit; consists of either a city or county or a group of contiguous counties. 2007 of them are used in the Current Population Survey.
Term
 strata
Definition
 Groups of PSUs sorted so that the PSUs in each stratum would resemble each other on certain demographic and economic characteristics. There are 792 strata, and they do not cross state lines. New York and Los Angeles are in strata by themselves.
Term
 USU
Definition
 Ultimate Sampling Unit; consist of about 4 housing units each. Every person over the age of 16 living in a selected USU in a selected PSU is counted in the Current Population Survey.
Term
 civilian labor force
Definition
 Consists of civilians who are either employed or unemployed.
Term
 unemployment rate
Definition
 The percentage of the civilian labor force that is unemployed.
Term
 employed
Definition
 A civilian over the age of 16 who did any paid work in the previous week, or were temporarily absent from a regular job.
Term
 unemployed
Definition
 A civilian over the age of 16 who were not employed the previous week but were available for work and were looking for work during the past 4 weeks.
Term
 outside the labor force
Definition
 A civilian over the age of 16 who is neither employed nor unemployed by Census Bureau definitions.
Term
 panel bias
Definition
 The idea that people's responses change as a result of being interviewed, progressively biasing the sample.
Term
 weighting
Definition
 To compensate for under- or over-represented groups in the Survey, the Census Bureau weights the data collected to better reflect the makeup of the overall population.
Term
 cluster sampling
Definition
 A sampling technique where the entire population is divided into groups, or clusters, and a random sample of these clusters are selected. All observations in the selected clusters are included in the sample.Typically used when the researcher cannot get a complete list of the members of a population they wish to study but can get a complete list of groups or 'clusters' of the population. It is also used when a random sample would produce a list of subjects so widely scattered that surveying them would prove to be far too expensive.
Term
 half-sample method
Definition
 A method of estimating the standard error of a survey without having to do a second survey to compare results.Acheived by splitting the data in half and taking the average of the two sets of data, then taking the square root of the average error squared.
Term
 editing
Definition
 Current Population Survey interviewers' reports are checked, and any incomplete or inconsistent data is thrown out.
Term
 Current Population Survey
Definition
 A survey conducted by the Census Bureau, based on a nationwide probability sample of about 110,000 people who are interviewed monthly.
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