A simulation study to resolve conflicting evidence on the error rates from MANOVA group tests
Computation
2026-04-22 v1 Methodology
Abstract
Popular software packages report four generalizations of the ANOVA F test when conducting a multivariate analysis of variance (MANOVA). The reported operating characteristics of these fours tests vary widely depending on which research article the reader chooses. Some studies report extremely high type I error rates for a particular test even under ideal assumptions of multivariate normality and homoskedasticity; other studies report rates near the nominal level despite violations of the model assumptions. This simulation study seeks to clarify this apparent contradiction by providing a systematic evaluation of the type I error rates of the four statistics used to test for a group effect in MANOVA.
Cite
@article{arxiv.2604.18774,
title = {A simulation study to resolve conflicting evidence on the error rates from MANOVA group tests},
author = {Joseph D Consiglio},
journal= {arXiv preprint arXiv:2604.18774},
year = {2026}
}
Comments
19 pages, 9 tables, 0 figures