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| 독립 표본 t-검정× | 대응표본 t-검정 (Paired Samples t-test)× | |
|---|---|---|
| 분야 | 통계학 | 통계학 |
| 계열 | Hypothesis test | Hypothesis test |
| 기원 연도 | 1908 | 1908 |
| 창시자 | Student (W. S. Gosset) | Student (W. S. Gosset) |
| 유형 | Parametric mean comparison | Parametric mean comparison |
| 원전≠ | 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 ↗ |
| 별칭 | two-sample t-test, unpaired t-test, Student t-test, independent groups t-test | dependent t-test, matched pairs t-test, repeated measures t-test, within-subjects t-test |
| 관련≠ | 4 | 3 |
| 요약≠ | 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 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. |
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