MANOVAHowTo - How to Perform a MANOVA in SPSS In this...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
How to Perform a MANOVA in SPSS In this example, we will look at a “multivariate” analysis of variance. The difference between “univariate” and “multivariate” analyses is that a “univariate” analysis has only one dependent variable (with any number of independent variables / predictors). A “multivariate” analysis, on the other hand, has many dependent variables (again, with any number of IVs). The goal of our analysis is to look for an effect of one or more IVs on several DVs at the same time . Therefore, we’re going to use the familiar “general linear model” command in SPSS, but choose a “ multivariate ” analysis. This dataset has information about whether a person is in one of several different experimental groups (“group”), and their scores on three different types of memory tests (recognition, free recall, and cued recall). The difficulty level of each memory task is also rated. We will treat the three different memory tasks as different examples of a single phenomenon (“memory”). Therefore, we will look at all three together as dependent variables in our analysis.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
A dialog box will appear. It should look very similar to the dialog box that we’ve been using for the past two weeks (except that it says “ multivariate ” up here, instead). Now, hit the “Options” button to go on. In a multivariate analysis, you have more than one DV, so you can select many DVs and put them into this box together. In this case, we have three different memory tests and we want to test for an effect of the IV on all three of them at once. In the “fixed factor” box, put the predictor that we’re looking at: experimental group membership.
Background image of page 2
Again, this “options” dialog is very similar to the used in the univariate analyses. Hit “Continue,” and then, back in the main dialog box, hit the “Model” button to go on . Click on the “observed power” button to get the statistical power of the multivariate tests.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Here’s the “model” dialog box, again very similar to the one for univariate analyses. As usual, you can use the default value of “full factorial,” or you can select just certain
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/12/2010 for the course APPLIED ST 2010 taught by Professor Various during the Spring '10 term at Universidad Nacional Agraria La Molina.

Page1 / 9

MANOVAHowTo - How to Perform a MANOVA in SPSS In this...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online