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| Test niezależności chi-kwadrat Pearsona× | V Craméra× | Regresja logistyczna× | |
|---|---|---|---|
| Dziedzina≠ | Statystyka | Statystyka | Statystyka w badaniach |
| Rodzina≠ | Hypothesis test | Hypothesis test | Process / pipeline |
| Rok powstania≠ | 1900 | 1946 | 1958 |
| Twórca≠ | Karl Pearson | Harald Cramér | David Roxbee Cox |
| Typ≠ | Nonparametric association / goodness-of-fit | Nonparametric association measure | Method |
| Źródło pierwotne≠ | Pearson, K. (1900). On the criterion that a given system of deviations from the probable in the case of a correlated system of variables. Philosophical Magazine, Series 5, 50(302), 157–175. link ↗ | Cramér, H. (1946). Mathematical Methods of Statistics. Princeton University Press. ISBN: 978-0691080420 | Cox, D. R. (1958). The regression analysis of binary sequences. Journal of the Royal Statistical Society, Series B, 20(2), 215–242. DOI ↗ |
| Inne nazwy≠ | chi-squared test, χ² test, Ki-Kare Testi, chi-square test | cramers v, cramer v, phi coefficient (r×c), Cramer's V (İlişki Kuvveti) | logit model, binomial logistic regression, LR |
| Pokrewne | 3 | 3 | 3 |
| Podsumowanie≠ | The chi-square test of independence is a nonparametric hypothesis test that determines whether two categorical variables are statistically associated or independent of one another. Introduced by Karl Pearson in 1900, it remains the standard procedure for analysing contingency tables and requires no assumption of normality — only that observations are independent and that expected cell frequencies are sufficiently large. | Cramer's V is a nonparametric effect-size statistic that measures the strength of association between two categorical variables on a scale from 0 to 1. Introduced by the Swedish mathematician Harald Cramér in his 1946 work Mathematical Methods of Statistics, it generalises the phi coefficient to tables of any size, making it the standard companion statistic to the chi-square test. | Logistic regression is a statistical method for modeling the probability of a binary outcome (disease present/absent, success/failure) as a function of continuous and categorical predictors. Developed by David Roxbee Cox (1958), it solves the problem of predicting categorical outcomes by applying a logistic transformation to constrain predictions to the [0,1] probability interval, enabling accurate risk stratification, diagnostic prediction, and causal inference in epidemiology, medicine, and social science. |
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