Definition of anecdotal evidence in English English dictionary
A limited selection of examples which support or refute an argument, but which are not supported by scientific or statistical analysis
The expression anecdotal evidence (or testimonial evidence) refers to evidence from anecdotes
Anecdotal evidence is an informal account of evidence in the form of an anecdote or hearsay. The term is often used in contrast to scientific evidence, such as evidence-based medicine, which are types of formal accounts. Some anecdotal evidence does not qualify as scientific evidence because its nature prevents it from being investigated using the scientific method. Misuse of anecdotal evidence is a logical fallacy and is sometimes informally referred to as the "person who" fallacy ("I know a person who..."; "I know of a case where..." etc. Compare with hasty generalization). Anecdotal evidence is not necessarily typical; statistical evidence can more accurately determine how typical something is