Editing Corroborating evidence (section)

==Types and uses==
Corroborating evidence tends to support a proposition that is already supported by some initial evidence, therefore confirming the proposition. For example, W, a witness, testifies that she saw X drive his automobile into a green car.  Meanwhile, Y, another witness, ''corroborates'' the proposition by testifying that when he examined X's car, later that day, he noticed green paint on its fender. There can also be corroborating evidence related to a certain source, such as what makes an author think a certain way due to the evidence that was supplied by witnesses or objects.<ref>For more information on this type of reasoning, see: [[Casuistry]].</ref>

Another type of corroborating evidence comes from using the [[Baconian method]], i.e., the  [[method of agreement]], [[Mill's Methods#Method of difference|method of difference]], and [[method of concomitant variations]].

These methods are followed in [[experimental design]]. They were codified by [[Francis Bacon (philosopher)|Francis Bacon]], and developed further by [[John Stuart Mill]] and consist of controlling several [[Dependent and independent variables|variables]], in turn, to establish which variables are [[causality|causally]] connected. These principles are widely used intuitively in various kinds of proofs, demonstrations, and investigations, in addition to being fundamental to experimental design.

In law, corroboration refers to the requirement in some jurisdictions, such as in [[Scots law]], that any evidence adduced be backed up by at least one other source (see [[Corroboration in Scots law]]).