- Hawthorne effect: Subjects respond to knowledge of being evaluated and observed.
- Jastrow effect: Subjects respond to explicit expectation about outcome.
- Pygmalion effect: Evaluators expect therapeutic benefit, so they see it.
- John Henry effect: Control subjects attempt to emulate expected outcomes.
- Halo effect: Subjects respond to novelty of treatment (i.e., new technology).
- Experiment effect: Evaluators consciously (or not) interpret outcomes differently.
- Socialization effect: Others reporting benefit influence outcomes.
- Value effect: Price of treatment influences expected outcomes.
Find out more about this book:What the Drug Companies Won't Tell You and Your Doctor Doesn't Know: The Alternative Treatments That May Change Your Life--and the Prescriptions That Could Harm You