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Multivariate Analysis of Variance

  • In: Encyclopedia of Epidemiology
  • Edited by: Sarah Boslaugh
  • Subject:Public Health (general), Public Health Research Methods , Epidemiology & Biostatistics

Multivariate analysis of variance (MANOVA) is a statistical technique used extensively in all types of research. It is the same thing as an analysis of variance (ANOVA), except that there is more than one dependent or response variable. The mathematical methods and assumptions of MANOVA are simply expansions of ANOVA from the univariate case to the multivariate case.

A situation in which MANOVA is appropriate is when a researcher conducts an experiment where several responses are measured on each experimental unit (subject) and experimental units have been randomly assigned to experimental conditions (treatments). For example, in a double-blind study systolic and diastolic blood pressures are measured on subjects who have been randomly assigned to one of two treatment groups. One group receives a new medication to ...

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