I would definitely say that the Kaplan score (or even any other practice test score) is just an estimate of what you could possible receive on the real test. Afterall, when you're taking the real test, you have to consider all the factors that contribute to your test score, for instance, stress, time frame? (if you didn't time yourself accurately), pressure, etc. I would say that the score you received on Kaplan is a good start! Through my experience working here at TestMagic, I've learned that many students do fall between their practice score within a 100 points. Yeah, i know that's a wide range but hey, any score between 660-720 is pretty good as it is for a beginner. Good luck studying!