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| Test esatto robusto di Fisher× | Test esatto di Fisher× | |
|---|---|---|
| Campo | Statistica | Statistica |
| Famiglia | Hypothesis test | Hypothesis test |
| Anno di origine≠ | 1935 (base); mid-p robustification 1961+ | 1922 |
| Ideatore≠ | Fisher (1935); mid-p extension by Lancaster (1961) and others | R. A. Fisher |
| Tipo≠ | Robust exact conditional test | Exact test of independence for categorical data |
| Fonte seminale≠ | Agresti, A. (2002). Categorical Data Analysis (2nd ed.). Wiley-Interscience. ISBN: 978-0471360933 | Fisher, R. A. (1922). On the interpretation of chi-squared from contingency tables, and the calculation of P. Journal of the Royal Statistical Society, 85(1), 87–94. DOI ↗ |
| Alias≠ | mid-p Fisher's exact test, robust exact test for contingency tables, conditional robust Fisher test, Fisher mid-p test | Fisher-Irwin test, exact test of independence, Fisher'ın Kesin Testi |
| Correlati≠ | 3 | 2 |
| Sintesi≠ | The robust Fisher's exact test extends Fisher's classic exact test for contingency tables by applying conservative-correcting adjustments — most commonly the mid-p correction — to reduce the extreme conservatism of the standard exact test. This produces better-calibrated Type I error rates while maintaining validity in small and sparse samples. | Fisher's exact test is a nonparametric exact-probability test of independence for small-sample contingency tables, introduced by R. A. Fisher in 1922. Rather than relying on a large-sample approximation, it computes the exact probability of the observed table directly from the hypergeometric distribution. |
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