1990, Donald P. Spence, "Theories of the Mind: Science or Literature?," Poetics Today, vol. 11, no. 2, p. 331:Once we move our search to the region of the mind, we find that access to the facts becomes much more difficult; as a result, disconfirmation is largely out of reach and metaphor begins to flourish.
(countable) A particularfact, observation, or other item of evidence which shows or tends to show that a belief or hypothesis is not true.
1981, Daniel M. Hausman, "John Stuart Mill's Philosophy of Economics," Philosophy of Science, vol. 48, no. 3, p. 366:One can reduce the disconfirmations of economic generalizations by specifying a margin of error.