nonresponse error
Non-response errors occur when the survey fails to get a response to one, or possibly all, of the questions.
Non-response causes both an increase in variance, due to the decrease in the effective sample size and/or due to the use of imputation, [ and may cause bias if the non-respondents and respondents differ with respect to the characteristic of interest. ]
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selymi|Points 11191|
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Asked 8/28/2013 9:45:41 AM
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