Equal Probability of Selection
Survey samples can be chosen in many ways, and one common approach is to use a technique that provides an equal chance of selection to all elements in the sampling frame. One type of equal probability sample is a simple random sample, but there are many others.
Morris H. Hansen, William N. Hurwitz, and William G. Madow appear to have been the first to refer to them as EPSEM samples ("equal probability selection method"), but the term was so often used by Leslie Kish that some have misattributed the coinage to him. Others have used the phrase self-weighting sample, although some eschew this term, given that weighting typically involves nonresponse adjustment and some form of calibration such as ratio adjustment or raking, and these lead to ...
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Reader's Guide
Ethical Issues In Survey Research
Measurement - Interviewer
Measurement - Mode
Measurement - Questionnaire
Measurement - Respondent
Measurement - Miscellaneous
Nonresponse - Item-Level
Nonresponse - Outcome Codes And Rates
Nonresponse - Unit-Level
Operations - General
Operations - In-Person Surveys
Operations - Interviewer-Administered Surveys
Operations - Mall Surveys
Operations - Telephone Surveys
Political And Election Polling
Public Opinion
Sampling, Coverage, And Weighting
Survey Industry
Survey Statistics
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