1) An early step in establishing the validity of the Stanford Sleepiness Scale measured changes in the scale in response to:

Use of stimulants

Watching multiple episodes of "Friends"

Hypnotics (sleeping pills)

Sleep deprivation

2) Chervin and Aldrich found that the Epworth Sleepiness Scale and the Multiple Sleep Latency Test were not correlated. They suggest that this means:

The MSLT is useless

The Epworth Scale is useless

Correlation does not imply causation

The tests are measuring different things

3) The Multiple Sleep Latency Test operationalizes "physiological sleep tendency" by measuring:

The time it takes to fall asleep (sleep latency)

The number of cows killed in a driving simulation

Blood pressure when the patient is lying down

The number of awakenings after falling asleep

4) Dinges and coworkers found considerable individual variability on the Psychomotor Vigilance Task (PVT) in response to sleep deprivation. However, when sleep deprived a second time, they found that individuals had very similar vigilance scores the second time (high test-retest reliability). This led them to suspect that the PVT response to sleep deprivation:

Was unreliable

Measured persistence and not sleepiness

Was strongly genetically determined

Was a task that required learning over time

5) The Stanford Sleepiness Scale measures sleepiness:

After a glass of warm milk

At a single moment in time

During a boring task

With the subject lying down

6) The psychomotor vigilance task (PVT) measures:

Reflexes

Latency to fall asleep

Lapses of attention

Boredom

7) The Maintenance of Wakefulness Task (MWT) of Hartse is similar to the Multiple Sleep Latency tests except it asks patients to:

Try to stay awake during the test

Close their eyes

Use the 7-3-5 breathing pattern

Press the button on a device in their hand