If a respondent is called and is "not at home," that sample element is no longer usable and callbacks should not be made. To do otherwise will distort the response rate.

Name: If a respondent is called and is "not at home," that sample element is no longer usable and callbacks should not be made. To do otherwise will distort the response rate.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Callbacks should be made to ensure that the sample remains representative and to avoid biasing the response rate by excluding those not initially available.

If a Respondent Is Called and Is "Not at Home