Response rates and representativeness: a lottery incentive improves physician survey return rates.

@article{Robertson2005ResponseRA,
  title={Response rates and representativeness: a lottery incentive improves physician survey return rates.},
  author={Jane Robertson and Emily J. Walkom and Patricia McGettigan},
  journal={Pharmacoepidemiology and drug safety},
  year={2005},
  volume={14 8},
  pages={571-7}
}
PURPOSE To test the effect of a AU dollars 2 scratch lottery ticket on response rates to a national mailed questionnaire of Australian general practitioners (GPs) and medical specialists. METHODS A randomized controlled trial was conducted and the incentive sent to half of the participants with the first mailing. A single follow-up mailing without incentive was sent to all non-respondents. Survey respondents were then informed of the research question regarding incentives and allowed to… CONTINUE READING

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