The Proportion of People with a Condition Who Correctly Test

question 28

Multiple Choice

The proportion of people with a condition who correctly test positive when screened is known as

• A)sensitivity.
• B)specificity.
• C)validity.
• D)efficacy.

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Definitions:

Ultradian

Pertaining to recurrent periods or cycles repeated throughout a 24-hour day, such as cycles of sleep stages.

Alpha Waves

Brain waves that are present when an individual is relaxed, awake, but not actively processing information.

Beta Waves

Brain wave patterns associated with active, alert consciousness and cognitive processes.

Delta Waves

The type of brain waves that are primarily associated with deep sleep and are the slowest with the highest amplitude seen in an EEG.