Your Roommate Is Staying in Bed All Day and Missing

question 155

Multiple Choice

 Your roommate is staying in bed all day and missing classes. She is sleeping all day but then wakes up frequently in the middle of the night. When she does get up, she is very irritable. When she goes to dinner, she says that nothing on the menu sounds good, and she ends up eating snack foods all the time. She has difficulty concentrating and has lost interest in hobbies that she used to enjoy. What might be going on with her?

• A) She might have bipolar disorder and should get medication.
• B) She might be depressed and should definitely see a doctor for a diagnosis.
• C) She might be coming down with schizophrenia and should see a doctor before it gets worse.
• D) She is just homesick and will be fine as soon as she gets over it.

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Definitions:

Sample Size

The number of observations or items selected from a population to participate in a statistical analysis.

Correlation Coefficient

A rephrased definition from KT-15: A numerical index ranging from -1 to 1 that indicates the extent to which two variables have a linear relationship.

Interval Variables

Another term for interval data, indicating variables measured along a scale on which each point is placed at equal distance from one another, with meaningful quantifiable differences but without a true zero.

Spearman Correlation

A measure of rank correlation, independent of parametric assumptions, which determines how accurately a monotonic function can depict the relationship between two variables.