方法对比
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| 配对样本t检验× | 独立样本 t 检验× | |
|---|---|---|
| 领域 | 统计学 | 统计学 |
| 方法族 | Hypothesis test | Hypothesis test |
| 起源年份 | 1908 | 1908 |
| 提出者 | Student (W. S. Gosset) | Student (W. S. Gosset) |
| 类型 | Parametric mean comparison | Parametric mean comparison |
| 开创性文献≠ | Student (1908). The probable error of a mean. Biometrika, 6(1), 1–25. DOI ↗ | Student (W. S. Gosset) (1908). The probable error of a mean. Biometrika, 6(1), 1–25. DOI ↗ |
| 别名 | dependent t-test, matched pairs t-test, repeated measures t-test, within-subjects t-test | two-sample t-test, unpaired t-test, Student t-test, independent groups t-test |
| 相关≠ | 3 | 4 |
| 摘要≠ | The paired samples t-test is a parametric hypothesis test that compares the means of two related measurements from the same subjects or matched pairs to determine whether the average difference is significantly different from zero. It leverages the dependency between observations to produce a more powerful test than its independent-samples counterpart. | 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. |
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