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A Step-by-Step Approach to Using SAS® for Univariate & Multivariate Statistics, Second Edition by Edward J. Stepanksi Ph.d., Larry Hatcher, Norm O'Rourke

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Some Possible Results from a Factorial ANOVA

Factorial designs are popular in social science research for a variety of reasons. One reason is that they allow you to test for several different types of effects in a single computation. The nature of these effects are illustrated later in this chapter.

First, however, it is important to note one drawback associated with factorial designs: they sometimes produce results that can be difficult to interpret compared to the results produced in a one-way ANOVA. Fortunately, this task of interpretation can be made much easier if you first prepare a figure that plots the results of the factorial study. This first section shows how this can be done.

Figure 10.2 presents one type of figure that is often ...

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