So, there's a dichotomy between "doing" and "reviewing." You do a problem and then you review that problem (or you do a set of problems, and then review that set, etc).
Probably 15% of your learning comes from doing the problem and 85% comes from reviewing that problem. Checking the answer and the solution comprise about 5-10% of that 85%. :)
So, basically, the issue here is that you need some help with how to learn better.
I'm going to start first with this article because it describes how to review your practice tests.
http://www.beatthegmat.com/a/2009/09/23 ... tice-testsThis will allow you to extract much more useful data for yourself and to share with us here. I think you do actually have some of that data in your post above, but you may not yet have the knowledge to be able to interpret it all appropriately. For example, you said:
"I had three SC that took longer than two minutes; all were 700-800. I got one right and two wrong."
If I saw that on my own test, this is what I would then think after that:
"So, when the questions are really hard, I get sucked into spending too much time, and that doesn't help me anyway because I only got 1 right. Did I make any careless mistakes elsewhere on this test? (Of course I did - I always do!) Were any of those careless mistakes due to speed? Oh, yes, I answered this SC in 40 seconds and this CR in 1m13s, and I got both wrong, and I really should have gotten them right. So spending extra time on some problems ALSO cost me these other two problems that I might have gotten right if I weren't rushing...
Okay, so I have to learn to cut myself off and make an educated guess more quickly on these really hard ones. At what point should I have recognized that this question was too hard for me? (Hint: approx. between the 30 and 60s mark on SC.) What should I have done then? Could I still eliminate some of the answers? At what point should I have told myself I just need to guess?"
Etc. The above is part of what's called "analyzing" or reviewing your work. This next article will go into much greater detail about how to do this on EVERY problem - yes, even the ones you answer correctly.
http://www.beatthegmat.com/a/2009/10/09 ... ce-problemI typically spend between 2 and 5 times as long reviewing a problem as I spent doing it in the first place. If you are not spending at least twice as long on the review of EVERY problem, then you are not learning much on that problem. (Again, including the ones you get right.)
Argh - I made an error on this problem! Now what?
http://www.beatthegmat.com/mba/2010/04/ ... our-errorsThere was also a string of 4 problems that I got incorrect. 3 of these 4 consecutive incorrect problems were DS.
What was the time on those problems? Were they too fast? Maybe you were rushing because of the others on which you spent too much time? (I'm totally guessing here - that might not have been the issue - but sometimes we get something wrong primarily because we were rushing, and we were rushing because we spent extra time somewhere else. So the problem is not that we're bad at this type of problem. It's that we are weak somewhere else and mismanaged our time, and that caused us to make this mistake on this one. Everything's connected. :)
http://www.beatthegmat.com/mba/2009/12/ ... managementOkay, so starting to get the idea? (You do have to read the above articles before you can reasonably answer that question.)
After you've done your test analysis, please feel free to share the results with us here; we would be happy to tell you what we think and help you to interpret the results.
Also, because you took the class, you're eligible for a free post-course assessment (PCA). Email your teacher to ask about this. (You're supposed to make the request by the end of your course, but perhaps your teacher will extend the deadline for you.)