Dement & Kleitman Boss

What was the relationship between eye movements and dream recall?

• Dream recall was frequent when subjects were woken during REM sleep

• Dream recall was frequent when subjects were woken during NREM sleep

• Dream recall was infrequent regardless of when subjects were woken

• Dream recall was unrelated to eye movement

What was the relationship between the length of REM sleep and the subjective estimates of dreams?

• There was a negative correlation between REM length and dream duration estimates

• There was a positive correlation between REM length and dream duration estimates

• There was no correlation between REM length and dream duration estimates

• The length of REM periods did not affect dream duration

The study by Dement and Kleitman (sleep and dreams) has high ecological validity because the participants slept in their own homes and under natural conditions.

• True

• False

What was the sample size of the Dement and Kleitman study? [Write a number.]

Which of the following is a strength of the Dement and Kleitman study?

• High ecological validity

• Large sample size

• No controls were implemented

• Standardized procedure increased reliability

What was the success rate for participants estimating 5 minutes of REM sleep correctly?

• 78%

• 88%

• 50%

• 80%

An EOG uses the same type of machine and electrodes as an EEG.

• True

• False

How many participants were studied in-depth? [Write a number.]

What was the experimental design used in the Dement and Kleitman study?

How many participants were studied minimally and used to confirm the findings of the main participants? [Write a number]