¹¹ Patrick is a big fan of non-parametric statistics, and uses them professionally at almost every occasion, either because he doesn’t trust the underlying assumptions, or just as a reality-check on the results he gets with parametric stats. It’s always nice to have a backup. If Pearson says “yes” but Spearman says “no,” for example, then he assumes that something unusual is going on and that he should look more closely at the data to see just what it is and whether it can be fixed. When the same thing happens to Steve, he goes off and writes an article about postmodern indeterminacy.