Geer And Maisel: Lack Of Control Flashcards
Method?
Lab experiment
•shown photos of dead car crash victims
•stress measured by GSR (Galvanic Skin Response) and ECG (heart rate)
PPs?
60 undergraduates enrolled in a psychology course at a NY UNI
Procedure?
Independent measures design with PPs randomly assigned to 3 conditions
What were the 3 groups?
1= given control over how long they looked at the photos for; told a tone would precede each new image
2= warned photos would be 60 seconds apart; see photo for 35 seconds; tone 10s before
3= told that from time to time they would see photos and hear tones
Results?
- ECG results discarded as inaccuracies
* group 2 showed most stress; group 1 least
Strengths?
- GSR calibrated to create baseline= increase validity
- independent measures= no order effects
- GSR objective= increases reliability+ supports psy as a science
Weaknesses?
- ethnocentric
- demand characteristics
- low population v as small sample
Aim?
To see if perceived or actual control can reduce stress reactions to averse (strong disliking) stimuli.