MGMAT CAT Problem with Sentence Correction

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MGMAT CAT Problem with Sentence Correction

by ryantb55 » Thu Mar 17, 2011 8:04 am
I had an issue with my latest CAT test and wasn't sure who to talk to. I have taken 4 MGMAT CATs receiving 42, 37, 35, and 45 on the Verbal sections. On the first three CATs my average difficulty for Sentence Correction questions was 700+. On the fourth CAT the average difficulty was only 660. I got 13 out of 13 correct (1 500-600 Lvl, 10 600-700 Lvl, 2 700-800 Lvl). The two 800 level questions appeared early during the exam. Is it possible that I exhausted the difficult SC question bank? It seems unlikely because my Verbal scores were average on the first three exams, and MGMAT has 6 CATs.

I am taking the GMAT in two weeks and need to complete a couple more CAT tests, specifically one this weekend. I don't want to spend time on another MGMAT CAT if my Verbal score is going to be skewed with easier SC questions. Can anyone help?
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by therealtomrose » Wed Apr 06, 2011 6:37 pm
VERY astute question. I work for ManhtattanGMAT and can answer your question precisely.

You have not exhausted the Q-bank for SC questions.

This CAN happen because all 6 tests pull questions from the same dbase, but it is very unlikely.

You are surely NOT running out of SC questions in the Q-bank.

Here is what is going on.

The real GMAT as well as the ManhattanGMAT practice tests all deliver problems based on your performance of questions in the entire section. That is, your performance on CR questions will affect the difficulty of SC questions that you get.

What is happening to you is, you have actually maxed out your own SC abilities given the constraints of your performance in CR and RC. If you check your assessment reports, you will find that you are stronger in SC than you are in either RC and/or CR.

You should be studying your weakest question type, not your strongest. Find your true weak area and go to work there.

-Tom Rose
www.TheMBAShow.com

Full Disclosure: I work for ManhattanGMAT

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by ryantb55 » Tue Apr 12, 2011 1:49 pm
Thank you for your response!

I ended up with a 700 on the GMAT and am considering retaking it.