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Population Survey Features and Response Rates: A Randomized Experiment.

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Summary
This summary is machine-generated.

To improve health survey response rates, using paper questionnaires, shorter length, and prepaid incentives are most effective. These features significantly increase participation in general population health studies.

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Area of Science:

  • Health Services Research
  • Survey Methodology
  • Public Health

Background:

  • General population health surveys are crucial for public health monitoring.
  • Achieving adequate response rates is essential for data validity and generalizability.
  • Optimizing survey design can enhance participant engagement.

Purpose of the Study:

  • To investigate the impact of various survey features on response rates.
  • To identify key design elements that maximize participation in health surveys.

Main Methods:

  • Randomized allocation of 8000 households in British Columbia to 7 survey variants.
  • Comparison of administration modes (paper vs. online), incentives (prepaid vs. none, lottery timing), questionnaire length (10 vs. 30 minutes), and sampling frames.

Main Results:

  • Overall response rate was 27.9% (range: 17.1-43.4%).
  • Survey mode (paper/online), incentive type, and questionnaire length significantly affected response rates.
  • Paper surveys with prepaid incentives and shorter length yielded the highest response rates.

Conclusions:

  • Survey administration mode, length, and incentive type are critical factors influencing response rates in mailed health surveys.
  • A short paper survey with a prepaid incentive is recommended for maximizing participation.
  • Expected response rates in similar Canadian mailed surveys range from 40% to 50%.