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Reference.org
Hypothetico-deductive model
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<p>The hypothetico-deductive model or method is a proposed description of the <a href="/facts/Scientific_method/182j8RWE">scientific method</a>. According to it, <a href="/facts/Scientific_inquiry/hmHjY5p5">scientific inquiry</a> proceeds by formulating a <a href="/facts/Hypothesis/gMABEJul">hypothesis</a> in a form that can be <a href="/facts/Falsifiability/IlxN7cYB">falsifiable</a>, using a test on observable data where the outcome is not yet known. A test outcome that could have and does run contrary to predictions of the hypothesis is taken as a falsification of the hypothesis. A test outcome that could have, but does not run contrary to the hypothesis corroborates the theory. It is then proposed to compare the explanatory value of competing hypotheses by testing how stringently they are corroborated by their predictions. </p>