In an Experiment Where Neither the Physicians nor the Subjects

question 81

Multiple Choice

In an experiment where neither the physicians nor the subjects know who was receiving the experimental drug or placebo is an example of a

• A)non-confounding experiment.
• B)secure experiment.
• C)true experiment.
• D)double-blind experiment.
• E)post hoc experiment.

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Definitions:

Directly

In a straight line or manner without any intervening space or substance.

Heart

A muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system.

Internal Carotid Artery

A major artery in the head and neck that supplies blood to the brain, eyes, and forehead.

Circulatory Pathway

The route taken by blood as it circulates through the body, delivering oxygen and nutrients while removing waste products.