5. What is double blind study in
clinical trial?
Medication detail shall not be
O known to both Investigator and
Patient
O
Medication detail shall not be
known to both Sponsor and Patient
Medication detail shall not be
known to both Sponsor and
Physician
O
Medication detail shall not be
known to both Sponsor only
Answer:
A double-blind study is one in which neither the participants nor the experimenters know who is receiving a particular treatment. This procedure is utilized to prevent bias in research results. Double-blind studies are particularly useful for preventing bias due to demand characteristics or the placebo effect.