<p>Suddenly I have been getting 760-800 on math and writing (with essay) when a week ago I was getting 600-650? I just started studying, and I find it hard to believe I have improved so much… My critical reading is still at ~600 but hopefully can boost it up. Is the 11 test PR book accurate, is it easier or harder?</p>
<p>It is strange to improve by 100 points in a week unless that 600-650 was your original test. If it was, then it is reasonable since you understand the format and test questions. In my opinion the PR tests are accurate and slightly a little harder. Others on CC don’t think it is accurate. I would buy the Blue Book to get ever more accurate tests though.</p>