Null hypothesis
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| - | The '''Anna Karenina principle''' describes an endeavor in which a deficiency in any one of a number of factors dooms it to failure. Consequently, a successful endeavor (subject to this principle) is one where every possible deficiency has been avoided. | + | The practice of [[science]] involves formulating and testing [[hypothesis|hypotheses]], statements that are [[Falsifiability|capable of being proven false]] using a test of observed data. The '''null hypothesis''' typically corresponds to a general or default position. |
| - | The name of the principle derives from [[Leo Tolstoy]]'s book ''[[Anna Karenina]]'', which begins: | + | ==See also== |
| - | + | * [[Counternull]] | |
| - | <blockquote>Happy families are all alike; every unhappy family is unhappy in its own way.</blockquote> | + | * [[Statistical hypothesis testing]] |
| - | + | * [[Likelihood-ratio test]] | |
| - | In [[statistics]], the term ''Anna Karenina principle'' is used to describe [[significance test]]s: there are any number of ways in which a dataset may violate the [[null hypothesis]] and only one in which all the assumptions are satisfied. | + | |
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The practice of science involves formulating and testing hypotheses, statements that are capable of being proven false using a test of observed data. The null hypothesis typically corresponds to a general or default position.
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