1. Original study – the silent condition 65% of participants continued to give shocks up to 450 volts

2. Women as the ’teacher’

3. The same!!! 65%

4. Voice feedback The ‘learner’ could be heard yelling in pain and saying he didn’t want to continue and that his heart was bothering him.

5. Little bit lower 62.5%

6. Increased proximity Teacher and learner in same room

7. Lower 40%

8. Physical force Teacher had to force learner’s hand onto the plate to receive electric shock

9. Lower 30%

10. Reduced proximity Experimenter left the room and gave instructions to ‘teacher’ by telephone

11. Lower 20.5%

12. Change of venue Experiment moved from prestigious Yale university to rundown office in nearby town

13. LOWER 47.5%

14. Support Teacher given support from two other ‘teachers’ (who were actually confederates) who refuse to obey

15. Lower 10%

16. Getting someone else to do it! Teacher paired with confederate who threw the switches to give the shock

17. Higher 92.5%

18. Limited contract Learner agreed to participate on the condition that ‘you let me out when I say so’

19. LOWER 40%