Which study design generally provides the highest level of evidence for therapeutic interventions?
Show answer and explanation
Correct answer: Randomized controlled trial
Randomized controlled trials (RCTs) minimize bias through randomization and often blinding. They are considered the gold standard for evaluating therapeutic interventions. Their design allows for strong causal inference.
Keep practicing
More Evidence-Based Medicine questions
- In the hierarchy of evidence, systematic reviews and meta-analyses are valued because they:
- The PICO framework is primarily used to:
- Which measure expresses the difference in event rates between treatment and control groups?
- Number Needed to Treat (NNT) is calculated as:
- Blinding in a clinical trial primarily helps to reduce:
- A confidence interval that crosses 1.0 for a relative risk suggests that: