Position

Falsificationism

A theory is scientific only if it makes predictions that could in principle be refuted by observation.

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Classification

Position level
specific
Domains
Epistemology , Philosophy of Science

Overview

Popper proposed falsifiability as the criterion that separates genuine science from pseudo-science and metaphysics, replacing the search for confirming instances with a demand for testable, refutable risk. A theory that survives repeated attempts at refutation is corroborated, never proven true.

Position on

Held by traditions

Incompatible positions

References

  • Karl Popper, The Logic of Scientific Discovery (1959), ch. 1
  • Thomas S. Kuhn, 'Logic of Discovery or Psychology of Research?', in Criticism and the Growth of Knowledge (Cambridge University Press, 1970), which argues against Popper that the mark of science is normal puzzle-solving under a paradigm rather than readiness to refute
  • Imre Lakatos, 'Falsification and the Methodology of Scientific Research Programmes', in Criticism and the Growth of Knowledge (Cambridge University Press, 1970), which argues that no single theory is refuted by observation and relocates the criterion to a programme's record of predicting novel facts