What is a placebo effect in psychology?

Related questions

1. How long does the placebo effect last?
2. How powerful is the placebo effect?
3. How long do placebo effects last?
4. What are the side effects of Nux vomica?
5. Does homeopathy have side effects?
6. What is the difference between nocebo and placebo?
7. What is the difference between placebo and placebo effect?
8. Can placebos work?
9. What medicines are placebos?
10. Is homeopathy really effective?

Tags

1. #effects
2. #experiments
3. #effect
4. #participants
5. #experiment
6. #treatment
7. #group
8. #control
9. #variable
10. #psychology
11. #utilize
12. #known
13. #substance
14. #which
15. #might
16. #inert
17. #researchers
18. #independent
19. #placebo
20. #exposed