Experimental Study Designs Quiz
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Questions and Answers

What is the main characteristic of experiments in epidemiological studies?

  • Investigator control over study circumstances (correct)
  • Limited evidence for causation
  • Lack of investigator control
  • Inability to test research hypothesis

    • Which study design provides the strongest evidence for testing a research hypothesis?

  • Experimental study (correct)
  • Natural experiment
  • Observational study
  • Case-control study

    • What is the gold standard of evidence for cause-and-effect relationships in medical research?

  • Randomized controlled trial (correct)
  • Observational study
  • Clinical trial
  • Natural experiment

    • What is the primary purpose of a clinical trial in medical research?

    <p>To evaluate the effects of a treatment</p> Signup and view all the answers

    Why are experiments rarely possible in human studies?

    <p>Ethical concerns</p> Signup and view all the answers

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