In an Experimental Study,men with Erectile Dysfunction Received Either Viagra

question 465

Multiple Choice

In an experimental study,men with erectile dysfunction received either Viagra or a placebo. In this study,the drug dosage (none versus peak dose) was the

• A)random sample.
• B)dependent variable.
• C)standard deviation.
• D)independent variable.

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Definitions:

Limbic System

A complex system of nerves and networks in the brain, involved with instinct and mood. It controls the basic emotions and drives.

Prefrontal Cortex

The region of the brain associated with decision-making, cognitive behavior, personality expression, and social behavior.

Sensory Experiences

Interactions with the environment through the senses, including sight, sound, touch, taste, and smell, which can influence emotional and cognitive development.

Standard Deviation

A statistical measurement that shows how much variation or dispersion exists from the average (mean) value.