The 2009 National Survey on Drug Use and Health Selected

question 14

Multiple Choice

The 2009 National Survey on Drug Use and Health selected a random sample of U.S.college students and asked them if they had ever used illicit drugs.Approximately 23% of the students surveyed reported using illicit drugs in the past year.The variable in this study is:

• A) the percentage of students who reported using illicit drugs.
• B) whether a student used illicit drugs.
• C) whether a college student responded to the survey.
• D) the number of college students who use illicit drugs.

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Definitions:

Reticular Formation

A network of neurons located in the brainstem that plays a key role in controlling arousal and consciousness.

Limbic System

An intricate network of nerves within the brain, responsible for managing emotions including pleasure and fear, alongside instincts and mood fluctuations.

Decreases

A reduction or a decline in the size, quantity, or intensity of something.

Hippocampus

A critical part of the brain in humans and vertebrates, essential for creating memories and navigating space.