The selectivity calculation is what it is… if your position is that they get a lot more applicants because there is no application fee, it might be fair but we could debate for a while what a “lot” is. They also manipulate the calculated selectivity through accepting a good % of their student body through ED & EDII. Lots of schools do that though.
10 year earnings, the statistic is “The median annual earnings of individuals that received federal student aid and began college at this institution 10 years ago, regardless of their completion status.”. It’s pretty well known that Tulane targets full-pay (or close to full-pay) students so the sample size to get to the 10 year earnings number is necessarily small. This is one of the same issues that they have with the current USNWR ranking (Pell/Aid recipients).
This is partly why rankings are meaningless. The consumer (parent/student) need to look at outcomes within the specific program across the college’s they’ve been accepted to.
Not suggesting the 68% is wrong but Niche shows 86% graduation rate. A quick google and I see both numbers referred to on various sites - so who knows. 