What you&#x27;re looking for is in Figure 3 (admittedly a bit hard to read because I had to squish it into the paper).  Each panel in that figure shows the results for test suites of a fixed size.  For example, the top left panel shows the results for suites with three test cases for Apache POI.  If you draw a horizontal line through the graph, all of the test suites that fall on that line have the same effectiveness score even though they have different coverage levels.  I gave a talk about this paper at GTAC this year and Google posts all the videos on YouTube, so if you have time and you&#x27;re still curious the explanation in the talk might help (and the graphs are much easier to read).  <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=sAfROROGujU" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=sAfROROGujU</a><p>The normalization was a point of contention with the peer reviewers as well, so in the end I tried both the normalized and unnormalized metrics and found similar results with both.  The other tables and figures are available on my site if you want to look at them.<p>I&#x27;m not sure I understand what you mean when you say suite B is doing more with less, though.  In the example, I was trying to say that suite B covers more code, so it will kill more mutants.  Maybe suite A kills 20 mutants and suite B kills 25 mutants, just to have some numbers to talk about.  But if B covers 50 mutants, and is only killing 25 of them, while A covers 25 mutants and kills 20 of the 25, it seems like suite A is doing a better job of testing the code it covers.  Or to put it another way, suite B is broad but shallow while suite A is focused but deep.  B isn&#x27;t necessarily a bad suite, but I wouldn&#x27;t say it&#x27;s doing more with less, just that it has a different focus.  Maybe I&#x27;m misunderstanding your point, though.<p>Another way of thinking about it is that the raw mutation score measures breadth: B is better than A because 25 &gt; 20.  The normalized score measures depth: A is better than B because 80% (20&#x2F;25) &gt; 50% (25&#x2F;50).