12Analysis of Variance: Further Issues
IN THIS CHAPTER
The sort of statistical analysis that this chapter examines is called factorial analysis. The term factorial in this context has nothing to do with multiplying successively smaller integers (as Excel does with its FACT() function). In the terminology used by experimental design, a factor is a variable—often measured on a nominal scale—with two or more levels to which the experimental subjects belong.
When an experimental design employs two or more factors simultaneously, it’s usually termed a factorial design. You might want to examine the effects of two different ...
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