The property of a statement or theory that it is capable of being refuted by experience. In the philosophy of science of Popper falsifiability is the great merit of genuine scientific theory, as opposed to un-falsifiable pseudo-science, notably psychoanalysis and historical materialism . Popper's idea was that it could be a positive virtue in a scientific theory that it is bold, conjectural, and goes beyond the evidence, but that it had to be capable of facing possible refutation. If each and every way things turn out is compatible with the theory, then it is no longer a scientific theory, but, for instance, an ideology or article of faith. See also falsification.

Philosophy dictionary. . 2011.

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