Tip Sheet 1

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Quick Tips How to Get a Respectable Response Rate # that answered # you contacted

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Response Rate

It can get more complicated than this, but let’s start with this basic assumption. The higher the response rate, the better the data describes the people in the sample or census. If you get a low response rate to your survey, your survey could suffer from “nonresponse error.”1 In other words, your results will be biased towards describing your respondents and ignoring those who did not respond. There is no “magic number” response rate that guarantees that you have completed an evaluation study of high quality. On a practical level, you may want information from as many people as you have asked for information from.

Quick Tip #27

Use a combination of the following techniques to increase response rates to mail, e-mail and telephone surveys : 1 See Dillman, D. (2000). Mail and Internet Surveys: The Tailored Design Method, 2nd Edition. New York: John Wiley & Sons for more information on improving response rates. ƒ

Send an advance notice letter or e-mail or make an advance phone call asking them to participate.

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Explain why their response to the survey is important.

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Enclose a self-addressed, stamped envelope so respondents don’t have to use their own postage.

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Send a reminder postcard 7 to 10 days after the first mailing to thank them for their response and encourage them to respond if they have not yet done so.

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Send a second questionnaire (with cover letter and stamped return envelope)

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7 days or so after the reminder postcard.

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Telephone respondents if they have not responded to the second survey.

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Give respondents the option to fax a response or give answers by telephone.

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Hand-address the envelope instead of using computerized labels and use a firstclass stamp.

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Offer to send a brief summary of the results, so they know their information will be used.

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Include a token incentive in the mailing for their completed questionnaire – a voucher for a publication; a few dollars, if your budget allows; an opportunity to be entered into a drawing for a prize.

Prepared by Heather H. Boyd, Evaluation Specialist. Citation: Program Development and Evaluation, How to Get a Respectable Response Rate, Quick Tips #1, University of Wisconsin-Extension, Madison, WI. © 2002 Available in PDF format at http://www.uwex.edu/ces/pdande/resources/index.html or contact:[email protected] Last updated March 22, 2005

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