The goal of this research was not intended to prove any hypothesis, it was exploratory in nature, designed to show the differences in ranking correlations betwe

The goal of this research was not intended to prove any hypothesis, it was exploratory in nature, designed to show the differences in ranking correlations between results on Google vs. Bing. One might argue that the hypothesis being tested was "Google and Bing use very different ranking algorithms" and the results would suggest that differences certainly exist, but maybe be more subtle than what's generally assumed. Of course, that statement only applies to the items looked at in the research. We don't, for example, know how the two engines may value different links differently.