A Theory Of Evidence Essay
(1) be a theory of support;
(2) be a theory of warrant;
(3) apply to non-ideal scenarios; and
(4) be descriptively adequate.
While (1) requires that a theory of evidence explain the role of evidence as a truth indicator rather than as truth guarantor, (2) requires that it extends to evidence that provides a good reason to believe in H to a certain degree or that demonstrates H. In short, an account of support is informative for gathering relevant facts to form evidential claims, whilst an account of warrant relates to assessing a statement in light of evidence and determining whether to believe it. (3) stipulates that a theory of evidence should allow of some principles that make sense of non-ideal scenarios, say, where ideal controlled experiments (in attempt to exclude known interfering factors) and ideal randomised controlled trials (RCTs) (in attempt to balance known and unknown interfering factors) are rarely found or background knowledge is unreliable or…