Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Falsifiable means that a hypothesis or theory can be proven false through observation or experiment. It is a key criterion for scientific hypotheses, distinguishing them from non-scientific claims.
5 Must Know Facts For Your Next Test
A hypothesis must be falsifiable to be considered scientifically valid.
Falsifiability allows for hypotheses to be tested and potentially disproven by empirical evidence.
Karl Popper, a philosopher of science, popularized the concept of falsifiability.
Not all scientific statements are falsifiable; some are descriptive or observational.
Falsifiability does not mean a hypothesis is false, but that it can be tested in such a way that it could be shown to be false.
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Related terms
Hypothesis: A proposed explanation for a phenomenon that can be tested through experimentation.
Empirical Evidence: Information acquired by observation or experimentation that scientists use to support or refute hypotheses.
Scientific Method: A systematic process for conducting experiments and analyzing data to answer questions and test hypotheses.