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| Test t pour échantillons indépendants× | Test t pour échantillon unique× | |
|---|---|---|
| Domaine | Statistique | Statistique |
| Famille | Hypothesis test | Hypothesis test |
| Année d'origine | 1908 | 1908 |
| Auteur d'origine | Student (W. S. Gosset) | Student (W. S. Gosset) |
| Type | Parametric mean comparison | Parametric mean comparison |
| Source fondatrice≠ | Student (W. S. Gosset) (1908). The probable error of a mean. Biometrika, 6(1), 1–25. DOI ↗ | Student (1908). The probable error of a mean. Biometrika, 6(1), 1–25. DOI ↗ |
| Alias | two-sample t-test, unpaired t-test, Student t-test, independent groups t-test | single-sample t-test, one-group t-test, one-sample t, Student one-sample t-test |
| Apparentées≠ | 4 | 3 |
| Résumé≠ | The independent samples t-test is a parametric hypothesis test that determines whether the means of two independent, unrelated groups differ significantly on a continuous outcome variable. Derived from Gosset's 1908 t-distribution, it is one of the most widely used inferential tests in social, behavioral, biomedical, and experimental sciences. | The one-sample t-test is a parametric hypothesis test that determines whether the mean of a single sample differs significantly from a known or hypothesized population value. Derived from Student's (Gosset's) 1908 t-distribution, it assumes continuous, approximately normally distributed data and is one of the most fundamental tests in applied statistics. |
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