Which Is the BEST Reason for Using a Placebo as Part

question 36

Multiple Choice

Which is the BEST reason for using a placebo as part of the experimental design?

• A)Because it makes it impossible for researchers to know who is receiving an intervention and who is not.
• B)Because the only way to know if the treatment works is to compare it to a placebo.
• C)Because it prevent subjects from knowing whether or not they are receiving the treatment.
• D)Because it allows the incorporation a larger number of subjects in the experiment.

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Definitions:

Contiguity

The condition of being in close association or proximity, often used in psychology to describe the closeness in time or space between two stimuli.

Conditioning

An approach to modifying behavior by teaching a subject to connect a favorable behavior with a stimulus that was initially unrelated.

Extinction

In behavioral psychology, the gradual decrease and eventual elimination of a conditioned response when it is no longer reinforced.

Unconditioned Stimulus

A stimulus that naturally triggers a response without the need for prior learning.