Question

"Blinding" is most commonly done in:

• A. Case Control study
• B. Randomized Controlled Trials
• C. Cohort study
• D. Cross-sectional study

Hint:

Blinding in randomized controlled trials reduces bias and improves the reliability of the study's results.

Answer 1

The Correct Option is B

Step 1: Understand "blinding" in research.
"Blinding" refers to the practice of keeping participants, clinicians, or both unaware of certain aspects of a study to prevent bias. It is most commonly used in Randomized Controlled Trials (RCTs) to ensure that the outcomes are not influenced by participants' or researchers' expectations.
- Case
-Control studies (1) and Cohort studies (3) may also involve blinding, but it is more commonly associated with RCTs.
- Cross
-sectional studies (4) typically do not involve blinding.