Research Note: A Model for Diagnosing and Reducing Nonresponse Bias

Richard Colombo

Perhaps the first question people ask when judging the quality of a sample survey is, 'What is the sample size?' Just as important, but one less often asked, is the question 'What is the response rate?'.

A Model for Diagnosing and Reducing Non-response Bias

Richard Colombo Fordham University

Perhaps the first question people ask when judging the quality of a sample survey is, 'What is the sample size?' Just as important, but one less often asked, is the question 'What is the response rate?' Sample size is, of course, important in assessing the degree of sampling error, which is proportional to 1 Ö sample size. Response rate is important in assessing the non-response bias, which is independent of sample size and usually far exceeds sampling error as a source of uncertainty.

Response rates in marketing...

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