Of the Two Basic States of Sleep, the One That

question 571

Essay

Of the two basic states of sleep, the one that increases after physical exertion, helps us recover from bodily fatigue, and is dream free about 90 percent of the time is __________ sleep.

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Definitions:

Multiple-Regression Formula

An equation that models the relationship between a dependent variable and two or more independent variables, predicting the dependent variable based on the independents.

Dependent Variable

A variable in an experiment or model that is expected to change in response to manipulations of the independent variable(s).

Independent Variable

The variable in an experiment that is manipulated or changed by the researcher to observe its effect on the dependent variable.

Criterion Variable

The dependent variable that researchers are interested in predicting or understanding in an experiment.