Clinical Trials · Pharmacology

Which term refers to a clinical trial design where neither the investigator nor the participant knows which treatment is being administered?

  1. Single-blind
  2. Open-label
  3. Double-blind
  4. Crossover
Show answer and explanation

Correct answer: Double-blind

Double-blinding is a crucial technique used to eliminate observer and participant bias. It ensures that the reported outcomes are not influenced by the expectations of the doctor or the patient.

Difficulty: Medium Question 4 of 20

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