https://www.humantruth.info/tags/hawthorne_effect.html
Human Truth Foundation pages (5):
The Placebo Effect and the Positive Power of the Mind on Health
Does Homeopathy Work? What are the Risks and Dangers?: 6. So What is This 'Placebo Effect' Which Makes Homeopathy Seem Effective?
Pseudoscience and Health: The World of Alternatives (to Truth): 3.1. The Placebo Effect and the Positive Effects of Delusion
Psychosomosis - the Placebo and Nocebo Effects: Curing and Causing Disease with the Mind: 2. The Placebo Effect and the Positive Effects of Mental Attitudes
Critical Thinking on Acupuncture: How Does it Work?: 4. The Placebo Effect