A _____ is often used to test whether the groups have different population means on the dependent variables considered jointly. A)multivariate analysis of variance B)multiple regression C)Hotelling T² test D)factor analysis

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Multivariate analysis of variance (MANOVA) is specifically designed to test for differences in multiple dependent variables between groups. It is often used in research where multiple variables are measured for the same group of participants and the researcher wants to know if there are significant differences between groups on these variables taken as a whole. Multiple regression (B) is used to predict a dependent variable based on one or more independent variables, while Hotelling's T-squared test (C) is used to test for differences between two populations' mean vectors. Factor analysis (D) is used to identify underlying factors that explain the correlations between multiple observed variables.

A _____ Is Often Used to Test Whether the Groups