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Often, psychologists develop surveys as a means of gathering data. Surveys are lists of questions to be answered by research participants, and can be delivered as paper-and-pencil questionnaires, administered electronically, or conducted verbally. Generally, the survey itself can be completed in a short time, and the ease of administering a survey makes it easy to collect data from a large number of people.
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50 % Response rates: half-empty, or half-full?

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Summary
This summary is machine-generated.

Low DNA sample response rates in the Black Women's Health Study highlight a critical need for new epidemiologic approaches. Creative analysis of response data can improve study quality and sustainability.

Keywords:
BiasBiobankingCohortEpidemiologyMethodologyResponse rates

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Area of Science:

  • Epidemiology
  • Genetics Research
  • Public Health

Background:

  • The Black Women's Health Study, a prospective cohort, has followed over 59,000 women since 1995.
  • Low participant response rates, exemplified by only 51% agreeing to provide DNA samples, pose challenges for contemporary epidemiologic research.

Purpose of the Study:

  • To address the critical need for improved, cost-effective approaches in epidemiology.
  • To explore creative and extensive analysis of response-rate data to enhance research quality, efficiency, and sustainability.

Main Methods:

  • Analysis of response data from the Black Women's Health Study.
  • Review of existing literature on predictors of participant response in cohort studies.

Main Results:

  • Responders to the DNA sample request were significantly older and more health-conscious than non-responders.
  • Low response rates and resulting self-selection bias are common in current epidemiologic and cohort studies.

Conclusions:

  • Epidemiology requires novel strategies beyond focusing solely on participant characteristics to boost participation.
  • Leveraging response-rate data more creatively can improve the quality, cost-efficiency, and long-term viability of research studies.