قارن الطرق

	اختبار ت لعينة واحدة	اختبار ت للعينات المزدوجة
المجال	الإحصاء	الإحصاء
العائلة	Hypothesis test	Hypothesis test
سنة النشأة	1908	1908
صاحب الطريقة	Student (W. S. Gosset)	Student (W. S. Gosset)
النوع	Parametric mean comparison	Parametric mean comparison
المصدر التأسيسي	Student (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.
الأسماء البديلة	single-sample t-test, one-group t-test, one-sample t, Student one-sample t-test	dependent t-test, matched pairs t-test, repeated measures t-test, within-subjects t-test
ذات صلة	3	3
الملخص	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.	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.