Dement and Kleitman

Question 1

Aims of Dement and Kleitmen

Answer 1

1. Does dream recall differ between REM sleep and nREM sleep
2. Is there a positive correlation between between subjective estimates of dream duration and the length of the REM period before waking.
3. Are eye movement patterns related to dream content

Question 2

Recall 2 activities described for vertical eye movement dream.

Answer 2

Climbing a ladder, throwing basketballs

Question 3

recall 1 activity described for horizontal eye movement

Answer 3

Two people throwing a tomato back and fourth

Question 4

Recall activities for ( relatively stable eye movement.

Answer 4

Driving a car, watching people in the distance.

Question 5

Sample technique and size. Gender balance

Answer 5

Volunteer sampling. 9 participants 7 men 2 women.
However 4 withdrew. 5 were studied in detail. remaining 4 used to confirm results.

Only 6 participants stayed more than 6 nights with the maximum being 17 nights

Question 6

Results/ findings

Answer 6

1. There is a connection between REM and Dreaming
2. There will be a significant positive correlation between the length of REM and the estimated length of dreams
3. There is a correlation between the direction of eye movement and the content of dreams.

Question 7

Strengths

Answer 7

Lab experiment( explain why strengths. Not told about brain waves to limit demand characteristics. Objective, statistical analysis - quantitative data

Question 8

Weaknesses

Answer 8

Low ecological validity( explain) Small sample size ( limits generalizability( explain). Sleep lab affected sleep ( extraneous variable) ( Relied on having self reporting)