[bobcostas55]

It's absolutely true. Take a look at these papers, they have data on how much test prep increases scores:

* http://nepc.colorado.edu/files/Briggs_Theeffectofadmissionst...

* https://academic.oup.com/sf/article-abstract/89/2/435/223527...

There is very little room for training in the SAT.

[jon_richards]

>For students that have taken the test before and would like to boost their scores, coaching seems to help, but by a rather small amount.

This is very different than having a large part of your education dedicated to doing well on the SAT, which is what I think the original comment was referring to.

[cncrnd]

Again, results depend on the person and effort exerted.