Every test needs to be calibrated according to its own difficulty, which means your raw score could improve from a 35 to a 38, but if your peers scores also increased on average by 3 points, then you'll get the same standard score. Of course it gets a lot more complicated than that and the DAT spends a lot of money to make sure the test is valid and assesses your readiness to take the test, but that is gist of why your standard score and raw score differ. Going off what @knewstance said above though, focus on what you're getting wrong and learn how to get it right! That's what is going to improve your score and help you score big on test day.