I took NCLEX-RN this week and before I did, I was trying to get others to answer this question for me. No one did. So...here's my two cents and I hope it comforts you. I did the tests/CDs in Kaplan's review book and also Mosby's. I was consistently scoring in the upper 60%'s and lower 70%'s. I kept feeling like I was doing well, but my scores were obviously not reflective of that. I was pretty worried about the NCLEX. I took it Tuesday and I had 77 questions and passed! So, evidently my scores were good enough to get me through. And, I didn't feel like the questions in either of those review books were anything like the NCLEX questions. Good luck to you!