Educational Psychology / Unit 2 EDP 0103 short lesson, about 20 seconds
Falsifiability
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The idea
Popper argued that a theory is scientific only if it is falsifiable, meaning some possible observation could show it to be wrong.
In practice
"Every child learns best in some hidden way no test detects" can never be refuted, so science cannot test it.
Where people slip
Falsifiable does not mean false: a falsifiable theory can survive every test so far and still count as scientific.
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