[old_bayes]

I believe they do look at other things (EDIT: or at least the study this paper was based on did):

"Using detailed admissions data from IvyPlus institutions, Chetty, Deming, and Friedman (2023) show that SAT and ACT scores also predict career success, including high levels of earnings and attendance at elite graduate schools, holding family income constant."

[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.