Someone with way too much time did a study on this years ago
by mocopdx (2019-02-08 13:04:15)

In reply to: true  posted by jt

I want to say it was around 2014. This myth was being floated around for ND and a number of other schools. Basically, there is no trend for any schools in terms of a post-commitment boost. Some go up, some go down. There is surprisingly little bias.