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Evidence is, in a general sense, anything used to support an assertion. The standards used to determine what sort of evidence is acceptable can vary, depending on the situation.
What may qualify as evidence in a casual argument might not qualify in a formal debate, legal proceeding or scientific investigation. Hearsay, for example, is often used in casual conversation to support a claim, but it isn't permissible in most courtrooms. In science, evidence is usually expected to be empirically observable and repeatable. Additionally, if a piece of evidence implicates more than one cause, additional evidence should be presented to exclude the other possibilities. Scientific experimentation depends on the analysis of many observations in order to determine consistent patterns and to reduce elements of chance or uncertainty. Any claims, or hypotheses, derived from observations must be falsifiable if disconfirming evidence is observed.
Below is a list of the standards of evidence in science, as well as why each standard is important. Each qualification for evidence is meant to minimize error and maximize accuracy, so the evidence can be as useful as possible.
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