Which of the Descriptions Is Not Descriptive of REM (Rapid

question 63

Multiple Choice

Which of the descriptions is not descriptive of REM (Rapid Eye Movement) sleep?

• A) visible movements of the eyes resembling those of one tracking the movements of objects in space,watching TV,etc
• B) difficulty arousing the sleeper
• C) oxygen consumption decreases by comparison to NREM sleep and in an alert wakeful state
• D) it represents 20-25% of a person's "sleep time"
• E) skeletal muscle activity is markedly reduced,except for the extraocular and respiratory muscles

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Definitions:

Dummy Variable

A variable used to model the effect of categorical independent variables. A dummy variable may take only the value zero or one.

Categorical Independent Variables

Variables that divide subjects into groups but do not allow for any kind of mathematical operation among groups.

Regression Model

The equation that describes how y is related to x and an error term; in simple linear regression, the regression model is y = b0 + b1x + e.

Adjusted Multiple Coefficient

A statistical measure adjusted for the number of variables in a model, used to assess the goodness-of-fit of a regression model.