השוואת שיטות

	ניתוח שונות משותפת (ANCOVA)	ניתוח מבחין
תחום	סטטיסטיקה	סטטיסטיקה
משפחה	Hypothesis test	Latent structure
שנת המקור	1932	1936
הוגה השיטה	Ronald A. Fisher	Ronald A. Fisher
סוג	Parametric group comparison with covariate control	Supervised classification and dimension reduction
מקור מכונן	Tabachnick, B.G. & Fidell, L.S. (2013). Using Multivariate Statistics (6th ed.). Pearson. ISBN: 978-0205849574	Fisher, R. A. (1936). The use of multiple measurements in taxonomic problems. Annals of Eugenics, 7(2), 179–188.
כינויים	analysis of covariance, covariance analysis, ANCOVA (Kovaryans Analizi)	LDA, Fisher discriminant analysis, discriminant function analysis, canonical discriminant analysis
קשורות	4	4
תקציר	ANCOVA is a parametric hypothesis test that compares the adjusted means of two or more independent groups while statistically controlling for one or more continuous covariates. By removing the portion of outcome variance explained by the covariate, ANCOVA increases statistical precision and produces fairer group comparisons. The method builds on the general linear model framework consolidated by Fisher in the early 1930s and is described comprehensively by Tabachnick and Fidell (2013).	Discriminant analysis finds linear combinations of predictor variables that best separate two or more known groups. It is used both to understand which predictors distinguish the groups and to classify new observations into those groups with minimum error.