قارن الطرق

	اختبار التبديل (العشوائية)	اختبار المتوسط المشذب (اختبار يوين)
المجال	الإحصاء	الإحصاء
العائلة	Regression model	Regression model
سنة النشأة	2005	1974
صاحب الطريقة	Good (2005); Edgington & Onghena (2007); resampling tradition	Karen K. Yuen
النوع	Nonparametric resampling test	Robust two-group comparison
المصدر التأسيسي	Good, P. (2005). Permutation, Parametric and Bootstrap Tests of Hypotheses (3rd ed.). Springer. ISBN: 978-0387202792	Yuen, K. K. (1974). The Two-Sample Trimmed t for Unequal Population Variances. Biometrika, 61(1), 165-170.
الأسماء البديلة	randomization test, exact permutation test, re-randomization test, Permütasyon Testi	Yuen's test, Yuen-Welch test, robust mean comparison, kırpılmış ortalama testi
ذات صلة	5	4
الملخص	The permutation test is a nonparametric resampling procedure that builds the sampling distribution of a test statistic directly from the data by repeatedly shuffling the group labels. Developed in the resampling tradition and treated systematically by Good (2005) and Edgington & Onghena (2007), it requires no parametric distributional assumption and yields an exact p-value.	The trimmed mean test compares two groups using trimmed means, which discard a fixed proportion of the most extreme observations in each tail before averaging. Introduced by Karen K. Yuen in 1974, it is a robust alternative to the classical t-test when the data are non-normal or contain outliers and the population variances are unequal.