What Is the Benefit of Using Controls in an Experiment

question 71

Multiple Choice

What is the benefit of using controls in an experiment?

• A)The size of the groups can be very large
• B)The subjects do not know anything about the experiment
• C)The subjects who are treated are balanced against the placebos
• D)The subjects are similar in all respects except for the treatment being tested

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Definitions:

Stapes

The smallest bone in the human body, located in the middle ear, and is involved in the conduction of sound vibrations to the inner ear.

Osseous Obstruction

A blockage or impediment within bone structures, often leading to reduced function or pain.

Eustachian Tube

A narrow tube that connects the middle ear to the throat, helping to maintain equal air pressure on both sides of the eardrum.

Otitis Media

An infection or inflammation of the middle ear, often resulting in ear pain, fever, and hearing problems.