Our fall test prep class is starting soon.
I highlight the relevant part of our class description.
PSAT-SAT: Other companies create confusion for business purposes by creating PSAT courses and then suggesting that students also need to take an SAT course. The PSAT and the SAT are essentially identical tests. There are format differences (the SAT is longer) and mild content differences (the SAT has more advanced math). Nonetheless, the best practices training for each is identical.
Should your child prepare for the PSAT? Yes.
The psychological imprinting of a bad score will deflate the motivation of many. Similarly, the strong scores of some will make them willing to work.