There was an article written by Art Sawyer about the change from 2400 to 1600. If I knew out to link I would.. I'm guessing it wasn't intended but no was from SAT has supposedly commented on this. As to when it changed from 1600 to 2400 I don't know if it did benefits girls or not but you would it would. Ironically on my daughters PSAT 8/9 she did better on the math.