ଅର୍ଥ : An experimental procedure in which neither the subjects of the experiment nor the persons administering the experiment know the critical aspects of the experiment.
ଉଦାହରଣ :
A double-blind procedure is used to guard against both experimenter bias and placebo effects.
Double-blind study ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Double-blind study ka matlab kya hota hai?