Biostatistics & Research · single question

Which study design follows individuals over time to observe the relationship between exposure and disease development?

  1. Case-control study
  2. Prospective cohort study
  3. Randomized controlled trial (RCT)
  4. Cross-sectional study
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Correct answer: B. Prospective cohort study

A prospective cohort study follows individuals over time to observe the relationship between exposure to a cause and the development of disease. This helps establish a temporal sequence, a critical factor in determining causation.

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