Freud's theories are viewed by some as unscientific because they lack [[falsifiability]], as pointed out by [[Karl Popper]].<ref>Popper, Karl R.: [http://www.stephenjaygould.org/ctrl/popper_falsification.html 'Science as Falsification'], ''Conjectures and Refutations: The Growth of Scientific Knowledge'' (London, 1963) </ref> | Freud's theories are viewed by some as unscientific because they lack [[falsifiability]], as pointed out by [[Karl Popper]].<ref>Popper, Karl R.: [http://www.stephenjaygould.org/ctrl/popper_falsification.html 'Science as Falsification'], ''Conjectures and Refutations: The Growth of Scientific Knowledge'' (London, 1963) </ref> |