[paxys]

That is referring to another study. This particular one doesn't add anything in that regard, just looks at freshman year GPAs.

[old_bayes]

Right, but what I think they're trying to do is to confirm that the larger, more comprehensive study also applies to Dartmouth. But the fact that they didn't also run the test against other metrics might suggest they didn't want to publish that data publicly.

Or if you're more cynical, they failed to produce those results.