Which is the Better of Two Alternatives?

One-factor experiments are used to compare more than one possible alternative for just one factor. For example, an experiment of this kind could be used to find out which is the best of six CASE tools or which is the best of two code inspection techniques. There is no limit on the number of alternatives for using this sort of analysis. However, this chapter focuses on the analysis of an experiment intended to assess which is the better of two possible alternatives; whereas we will study how this analysis can be generalised for k alternatives in the following chapter.