Effect of prize draw incentive on the response rate to a postal survey of obstetricians and gynaecologists: A randomised controlled trial. [ISRCTN32823119]
<p>Abstract</p> <p>Background</p> <p>Response rates to postal questionnaires are falling and this threatens the external validity of survey findings. We wanted to establish whether the incentive of being entered into a prize draw to win a personal digital assistant (PDA...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
BMC
2004-06-01
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Series: | BMC Health Services Research |
Online Access: | http://www.biomedcentral.com/1472-6963/4/14 |
Summary: | <p>Abstract</p> <p>Background</p> <p>Response rates to postal questionnaires are falling and this threatens the external validity of survey findings. We wanted to establish whether the incentive of being entered into a prize draw to win a personal digital assistant (PDA) would increase the response rate for a national survey of consultant obstetricians and gynaecologists.</p> <p>Methods</p> <p>A randomised controlled trial was conducted. This involved sending a postal questionnaire to all Consultant Obstetricians and Gynaecologists in the United Kingdom. Recipients were randomised to receiving a questionnaire offering a prize draw incentive (on response) or no such incentive.</p> <p>Results</p> <p>The response rate for recipients offered the prize incentive was 64% (461/716) and 62% (429/694) in the no incentive group (relative rate of response 1.04, 95% CI 0.96 – 1.13)</p> <p>Conclusion</p> <p>The offer of a prize draw incentive to win a PDA did not significantly increase response rates to a national questionnaire survey of consultant obstetricians and gynaecologists.</p> |
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ISSN: | 1472-6963 |