One Factor That Needs to Be Considered in Determining the Number

question 43

Multiple Choice

One factor that needs to be considered in determining the number of subjects to include in a norm sample is that the sample needs to be large enough to

• A) calculate means and standard deviations.
• B) increase the sizes of interpolations and extrapolations.
• C) make it likely that infrequent elements in the population will be represented.
• D) include at least 25 subjects at each grade and at each age.

Discuss the mechanisms of sleep regulation and the role of different brain waves in sleep stages.

Understand the hormonal influences on circadian rhythms and sleep.

Evaluate the implications of circadian rhythm disruption in humans, such as in shift workers.

Describe the methods and tools used to study sleep and circadian rhythms, including EEG, EOG, and EMG.

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