Evaluation: Dement and Kleitman

STRENGTHS
1. Lab experiment
  1. control
    1. recording device
    2. no communication between experimenter and sleeper until after they told dream content
    3. weren't told whether they'd been woken up in REM sleep
      1. Valid
  2. reliable
2. Scientific equipment (EEG and EOG)
  1. Valid
3. data
4. Ethics
  1. consent
DATA
1. Quantative
  1. number of dreams in REM and NREM
  2. estimate of dream duration
  3. eye movement
2. Qualitative
  1. dream content
SAMPLE
1. 9 participant; 5 studied intensively
  1. too small
2. 7 males and 2 females
  1. unrepresentative
3. all American adults
WEAKNESSES
1. sample
2. Ethics
  1. Psychological harm with sleep deprivation
3. Low ecological validity
  1. control
  2. wires on face
  3. not their own bed
4. opportunity sample
IMPROVEMENTS
1. sample
  1. Bigger so more males and females. Equal amount of males and females
USEFULNESS
1. regular occurring REMs every night

Resource summary

	Created by mitchcharlie almost 10 years ago