What is the difference between scores 20-60 pts apart?

[j.espiritu5]

I have been taking the CAT tests and my most recent attempt resulted in a score of 640. I was wondering what the difference is between a score of 640 and say 660-700. Is the difference only a matter of a few 600-700 range questions? Or is it a big leap from 640 to even 660? My test is this Saturday so I am hoping that I have to make only minor tweaks to my approach. Thanks in advance.

[StaceyKoprince]

"normal" variation is up to 30 or 40 points (in fact, the standard deviation on the real test is about 30 points) - there are a lot of variables. If you get a few more questions in your area of strength vs. weakness, if you mess up the timing (or nail the timing), etc - all kinds of things can make a 10, 20, 30 point different in your performance on any given day.

Note that it can go both ways, though. And, of course, the other big variable is that you know your practice tests don't count and you know the real test does. That affects different people differently.

As a general rule, expect to score roughly in the same range on the real thing, but that "roughly" typically extends to +/- 50 points. Do you have a shot at hitting high 600s? Sure. But you're more likely to be closer to mid-600s.

Also, EVERYthing I just wrote up there is predicated on the idea that you took your practice tests under 100% official conditions - including writing the essays, taking two 8-minute breaks, not eating and drinking except on breaks, etc. The more you deviate from official conditions on practice tests, the more likely your score is inflated - possibly only mildly, possibly quite a bit.

If you are now thinking, "Uh oh, I always skipped the essays and my breaks were usually longer than that... and by the way, I REALLY want that 700..." then you might need to think about postponing your test.

On the other hand, if you did take tests under 100% official conditions and you'd be fine with a 650-range score but are just hoping to hit higher (or you're willing to take the risk today and would be fine with studying to take it again in a month or two if you don't get it), then go ahead and take it!