sample survey A cross sectional study in which the sample is selected to be representative of the target population and in which the emphasis is on the generation of summary statistics such as averages and percentages.
Non-Response Error - The error in a sample survey resulting from the failure to obtain information from a designated respondent for any reason. To the extent that respondents and non-respondents differ, a bias is created in the survey results.
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Projectability: The degree to which research results can be extrapolated to the larger universe or population based on the sample surveyed.
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