So sánh phương pháp

	Phép kiểm t cho hai mẫu độc lập	Kiểm định t mẫu cặp
Lĩnh vực	Thống kê	Thống kê
Họ	Hypothesis test	Hypothesis test
Năm ra đời	1908	1908
Người khởi xướng	Student (W. S. Gosset)	Student (W. S. Gosset)
Loại	Parametric mean comparison	Parametric mean comparison
Công trình gốc	Student (W. S. Gosset) (1908). The probable error of a mean. Biometrika, 6(1), 1–25.	Student (1908). The probable error of a mean. Biometrika, 6(1), 1–25.
Tên gọi khác	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
Liên quan	4	3
Tóm tắt	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.