They are harder, but are accurate +/- 10 pts. You have to realize on the real thing you are going to be more nervous, and it's a lot of pressure, so that most likley works agains't you. On the kaplan I was scoring 320 and on the real thing I scored a 300. On the physics tho I was scoring like 280 and on the real thing I scored a 300 so that was a plus. Kaplan preps you well b.c it is harder, so when you get to the real thing you're like oh yeah I studied this.