Pedro Arantes
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Anecdotal Evidence

Anecdotal evidence is a factual claim relying only on personal observation, collected in a casual or non-systematic manner.
#cognitive-bias
Zettelkasten, August 01, 2021
## Notes - Anecdotal evidence is a factual claim relying only on personal observation, collected in a casual or non-systematic manner. - It's generally regarded as limited in value due to several potential weaknesses compared to objective and verifiable evidence. - It may be considered within the scope of a scientific method as some anecdotal evidence can be both empirical and verifiable, e.g., in the use of medical case studies. - Authority powers anecdotal evidence. - It's a type of [inductive argument](/zettel/inductive-argument). - Anecdotal evidence is often unscientific or pseudoscientific because various forms of [cognitive bias](/zettel/cognitive-bias) may affect the shreds of evidence. - Some definitions of anecdotal evidence: - _"Casual observations or indications rather than rigorous or scientific analysis."_ - _"Information passed along by word-of-mouth by not documented scientifically."_ - _"Evidence that comes from an individual experience."_ ## References - [Wikipedia. Anecdotal evidence](https://en.wikipedia.org/wiki/Anecdotal_evidence)
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