Probability Sample
In gathering data about a group of individuals or items, rather than conducting a full census, very often a sample is taken from a larger population in order to save time and resources. These samples can be classified into two major groups describing the way in which they were chosen: probability samples and nonprob-ability samples. Both types of samples are made up of a basic unit called an individual, observation, or elementary unit. These are the units whose characteristics are to be measured from a population. In probability samples, each member of the population has a known nonzero probability of being chosen into the sample. By a random process, elements are selected and receive a known probability of being included in the sample; this is ...
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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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