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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 Two-Way Mixed-Design ANOVA

Before showing how to analyze data from a mixed design, it is instructive to first review some of the results that are possible with this design. This will help illustrate the power of this design and will lay a foundation for concepts to follow.

A Significant Interaction

In Chapter 10, “Factorial ANOVA with Two Between-Group Factors,” you learned that a significant interaction means that the relationship between one predictor variable and the criterion is different at different levels of the second predictor variable. (With experimental research, the corresponding definition is “the effect of one independent variable on the criterion variable is different at different levels of the second ...

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