Assertion: trial | /r/HasProperty | blinded
Facets:
value: sometimes
type: TEMPORAL
value: often
type: DEGREE
Source sentences:
text: Many trials are doubled-blinded so that researchers do not know to which group a subject is assigned.
text: These trials are often "blind," meaning neither the patients nor the researchers know which participants have received the experimental treatment and which are in the control group.
text: The trial was both double-blind and placebo-controlled.
text: When a trial is "double-blinded," neither the participants nor the treating doctors know if an individual patient is receiving the standard treatment versus the experimental treatment.
text: The trial may be blinded, in which information which may influence the participants is withheld until after the experiment is complete.
text: To further reduce the chance of bias, trials that include randomization are sometimes "blinded.