by StaceyKoprince Wed Jul 09, 2008 5:24 pm
Good - 15-20 days is about right. When reviewing your exams, go over every problem, not just the ones you got wrong. Sometimes, you get something right when you really shouldn't have - you got a little lucky. That should essentially be considered a "wrong" answer, because you still need to review that problem in the same way you'd review something you got wrong.
In addition, sometimes you get things right for the right reason - you did know what you were doing - but you didn't do the problem in the best way it could be done. You're never going to figure out a better way unless you go back and review that problem! And it's important to take the time to do this because you actually have to get more efficient at the problems you already know how to do in order to have time to do the harder problems that you'll be given as you improve.
It's also easier to learn how to make educated guesses and how to avoid traps from problems that you got right, because you understand how that problem works. Learn HOW to guess / avoid traps on problems that you understand, and apply those lessons to problems of the SAME type when you get a hard one that you don't know how to do.
Re: your timing question - yes, finding the balance is very difficult for everyone. The best thing to do, in my opinion, is train yourself as to how long 1 minute is (one, not two). If, by the 1 minute mark, you don't know what you're doing with the problem, you spend another 1 min period making an educated guess and then you keep going. This allows you to keep everything in terms of 1 minute, a consistent time throughout, and it reminds you that you've got to guess and move on when it's just not working. Buy a stopwatch with lap-timing capability, if you don't have one already, and place it facedown on the table (so you can't see it). As you're working on problems, hit the "lap" button every time you think one minute has gone by. After doing one, or five, or ten problems, check and see how good you are, and adjust accordingly. It's good if you can get to the point of being able to estimate accurately within 15 seconds (that is, 45seconds to 1min 15seconds).
Re: validity of the scores, the standard deviation on our test overall is about 50 points (compared to a standard deviation of about 30 points on the real thing). I don't, unfortunately, have SD figures just for math and verbal separately, but I would expect that the drop you experienced is wider than the typical deviation people experience.
Stacey Koprince
Instructor
Director, Content & Curriculum
ManhattanPrep