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Updated: Aug 17, 2026

Basics of Multivariate Analysis in Neuroimaging Data
Published on: July 24, 2010
Power analysis for multivariate and repeated measures designs: a flexible approach using the SPSS MANOVA procedure
E J D'Amico1, T B Neilands, R Zambarano
1University of California, San Diego, 9500 Gilman Dr. (0109), La Jolla, CA 92093-0109, USA. edamico@psy.ucsd.edu
Abstract:
Although power analysis is an important component in the planning and implementation of research designs, it is often ignored. Computer programs for performing power analysis are available, but most have limitations, particularly for complex multivariate designs. An SPSS procedure is presented that can be used for calculating power for univariate, multivariate, and repeated measures models with and without time-varying and time-constant covariates. Three examples provide a framework for calculating power via this method: an ANCOVA, a MANOVA, and a repeated measures ANOVA with two or more groups. The benefits and limitations of this procedure are discussed.
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