Term used to described a study in which both the investigator or the participant are blind to (unaware of) the nature of the treatment the participant is receiving. Double-blind trials are thought to produce objective results, since the expectations of the researcher and the participant about the experimental treatment such as a drug do not affect [..]

A clinical trial in which neither the medical staff nor the person knows which of several possible therapies the person is receiving.

The design of a study in which neither the investigator or the subject knows which medication (or placebo) the subject is receiving.

In a double-blind experiment, neither the subjects nor the people evaluating the subjects knows who is in the treatment group and who is in the control group. This mitigates the placebo effect and gua [..]

In a double-blind study, the participant does not know whether s/he is receiving the treatment or placebo and neither do the researchers. See blind.

A type of clinical trial in which both the participants and the researchers do not know who receives the experimental treatment and who receives the placebo. This is to prevent researcher or participa [..]

A research procedure in which neither the patient nor the investigator knows who is receiving the experimental substance or procedure and who is receiving a placebo. Done to avoid bias in the study.

refers to a study in which neither the investigators administering the treatment nor the participants know which participants are receiving the experimental treatment and which are receiving the place [..]

A type of clinical trial where neither the researcher or patient knows whether they are receiving the new drug or treatment. This is used to prevent the results from being influenced by peoples’ opinions.

A clinical testing method in which neither patient nor doctor know what medication or procedure is being used.