Evidence-Based Medicine · Pharmacology

External validity refers to:

  1. The accuracy and reliability of measurements within a study
  2. Generalizability of study results to other populations
  3. The elimination of confounding variables
  4. The statistical significance of results
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Correct answer: Generalizability of study results to other populations

External validity describes how well study findings apply to broader patient populations. It concerns generalizability beyond the study sample. Trials with strict inclusion criteria may limit external validity.

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