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(Un) Scientific analysis of gmatprep

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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 07 Jul 2009, 21:55
Expert's post
I believe that timing in general does not matter with one exception several alluded to: it may ding you for answering too quickly (within a few seconds) since in that case you are just guessing.
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 17 Jul 2009, 01:22
Guys i don't think that the prep software and actual exam algorithms are exactly same..
i've heard, so many people saying that what they observed on the prep was not completely same or true in the actual test..
In actual test, they got very diff. results from the strategies they "assumed" or followed by experimenting with gmatprep..with same difficulty questions..

So, i would rather focus on the concepts..
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 19 Jul 2009, 02:08
bsd_lover wrote:
Yup, I was at it again today. Next set of experiments :
3. What is the importance of the last 17 questions?
Experiment : If I get the 1st 20 correct and mess up the last 17 what will happen ?
Methodology : Kick butt in the 1st 20 and guess the last 17
Results : Q49 with 12 wrong overall.
Analysis: Whoa !!! 49 ? with the same number wrong as the 1st experiment ... By Question 20 I had received all the tough quant concept questions that I could have ever hoped for. However, I wasn't expecting a score as high as 49. Although that might be because I got a few guesses on the last 17 right. Even so I'm sure I'd have received 46 or above here. Goes to underscore the importance of those first 10 questions compared to the last few.

4. What is the importance of CR in Verbal ?
Experiment : If I get all the CRs correct and mess up everything else what will happen ?
Methodology : Kick butt in all the CRs and guess everything else
Results : V13 with 29 wrong overall.
Analysis: I think I've busted my own myth that CR is more important than SC in some way. This doesn't seem to be the case. I got 11/11 CRs correct and still could not achieve more than 13. The CRs were different to the ones I usually get (at 40+ level). I encountered 4 of these CRs in the 1st 10 questions.


Superb analysis. It has broken one of my greatest myth. Thanks a lot bsd. :P
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 07 Aug 2009, 10:13
robertrdzak wrote:
I thought I would add a unique expereince with GMAT Prep.

I took the GMATPrep2 yesterday and scored 3 wrong (all in a row) in the first 10. Questions 8, 9 and 10 to be specific. I then scored another 3 wrong on the next 10 questions and 1 wrong in the last 17.

Questions.............# Wrong
1-10.........................3
11-20.......................3
21-37.......................1

Overal Quant score: 50

I really do not think the first 10 or even 20 are as heavily weighted as most people think. MGMAT seems to follow this belief as well.


The wrong answers could be experimental questions, so Q50 is possible.
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 23 Sep 2009, 02:32
I missed 9 Quant on the GMATPrep Test. Got first 13 correct and then missed questions evenly for next 23. They were tough. First, time taking test. I got a 50Q. Just thought I would put up my 2 cents. I am a strong believer that first 10 matter most.

Also, missed 9 in V and got a 41. Then, (on different software) missed first 2 and only 4 total and got a 39V!
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 24 Sep 2009, 15:17
Expert's post
aj1545 wrote:
I missed 9 Quant on the GMATPrep Test. Got first 13 correct and then missed questions evenly for next 23. They were tough. First, time taking test. I got a 50Q. Just thought I would put up my 2 cents. I am a strong believer that first 10 matter most.

Also, missed 9 in V and got a 41. Then, (on different software) missed first 2 and only 4 total and got a 39V!


Fantastic GMAT Score - must be 750?
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 27 Sep 2009, 23:32
Nice experiment!!!!
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 28 Sep 2009, 15:04
bb wrote:

Fantastic GMAT Score - must be 750?


I got a 730 actually on the GMATprep. I have yet to take the second one and I am saving it for the week before my test (Oct. 10).

I have taken Kaplan twice and got 710 & 760. Manhattan = 730. Princeton = 710. I have traditionally performed well on test day so I am hoping that I get 700+. I think that my app will speak for itself as long as I can get in the game.
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 04 Oct 2009, 22:30
Great experiment... Keep going..

I got a 46 in quant with 16 mistakes and 44 in quant with just 11 mistakes.
when i got a 44 i got a series of 3 questions wrong and when i got 46, my mistakes were spread. My guess is that mistakes done continously cost more.
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 04 Dec 2009, 05:43
The test must be finished at all costs.
Don't ever get a "bad" streak of answering two or more wrong in a row.
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Repeating the GMAT Prep [#permalink] New post 04 Dec 2009, 08:37
Hi,

I was wondering what your thoughts were on repeats with the GMAT Prep. I did the test 3 times now and I did achieve my all time highest in both areas (Q 47, V 31 - 630). On one hand, I am happy for the score gain/increase. On the other, I feel its just because I have seen repeat questions, predominantly in RC CR and PS. I did get my first Permutation question right (first time in my test taking experiences). Also, managed my time more effectively and cut my losses - wasn't as stubborn (feel that I can still improve on this). So, I will assume that given that I have seen some questions my true ability is like a 550? Is that a correct way to think about it?

Also, I have this "adaptive feeling" about the test... can anyone comment on this scenario?
First 5 questions - I get a Work problem wrong (quite simple, not THAT bad)
20 questions later - I get another work problem
towards end of exam - I get another work problem.

Essentially, I feel that that if I get wrong one type (work problem in this scenario) of question, I will probably see a harder one in the future of the test. I dont know if its me going crazy though...

Thanks for your time and thoughts.

All the best,
Jas
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 05 Dec 2009, 22:24
aj1545 wrote:
bb wrote:

Fantastic GMAT Score - must be 750?


I got a 730 actually on the GMATprep. I have yet to take the second one and I am saving it for the week before my test (Oct. 10).

I have taken Kaplan twice and got 710 & 760. Manhattan = 730. Princeton = 710. I have traditionally performed well on test day so I am hoping that I get 700+. I think that my app will speak for itself as long as I can get in the game.

My exp with MGMAT CAT is different. In Q, I did not have a very long chain of corrects (the longest was 5). But the test kept feeding me 700+ questions since Q#4 onwards (and never fed me 500-600 level question).
In V, even after getting several wrong in the first 10, I had 9-correct-answer-long chain in Q#20-30 range and by that time I started seeing 700+ again. If their cAT algorithm is the same as gmac, then, the first few questions being very important may not hold true and one can recoup the losses by getting a long-correct-answer chain even after the first 10.
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Just how much overlap on GMATPrep [#permalink] New post 10 Dec 2009, 17:23
I read timetrader's post on the GMATPrep and he said that it can be take one or two extra times for practice, but there might be some overlap. I was wondering just how much over lap is there if you take both tests again for the second time and for the third time. I took the first exam before I started studying to estimate how much work I'll have to do. Now I've studied for a couple of months, and would really like to see how much I've improved and how much more work I'll have to do. However, I would like to save a test to do a week before the test. If I do the second test now and uninstall the software and then reinstall, can I do both tests over again without seeing more than 10% overlap?
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Re: Just how much overlap on GMATPrep [#permalink] New post 10 Dec 2009, 17:42
11MBA wrote:
I read timetrader's post on the GMATPrep and he said that it can be take one or two extra times for practice, but there might be some overlap. I was wondering just how much over lap is there if you take both tests again for the second time and for the third time. I took the first exam before I started studying to estimate how much work I'll have to do. Now I've studied for a couple of months, and would really like to see how much I've improved and how much more work I'll have to do. However, I would like to save a test to do a week before the test. If I do the second test now and uninstall the software and then reinstall, can I do both tests over again without seeing more than 10% overlap?


installing and reinstalling won't do anything..the program is stored in your registry..you would have to find a way to delete from the registry
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 10 Dec 2009, 17:50
Best thing to do is the take an exam and don't review what you got wrong/right. You can review what you got wrong, as far as question number, but don't review the answers.
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 12 Dec 2009, 13:00
Is there a lot of overlap, when the two tests are taken for the second time?
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 13 Dec 2009, 03:34
What I read on this and other forums, you can take test 3-4 times easily without much overlap (i.e. 4-5 questions). GPrep has good amount of questions.
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 23 Jan 2010, 01:25
In general, I have notified an obvious correlation of getting a substantially higher score the less goofy I am on the first 9 questions.

The myth seems somewhat logical to me if I bring it into real life perspective. Although I know the logic and coding behind GMAC's software for determination of assessment, I think its somewhat common sense that initial assessments carry more weight rather than fine tuning one's ability past the first 1/4 to 1/5 of each respective section. Meaning the if then statements (obviously probably much more complicated in reality) matter more initially because thats a relative of how fast you can rise or fall in a mere few questions in the beginning. Kind like the phrase

initial impressions most?

Out of curiosity have any of you tinkered with the myth of the initial 5 or 8 or 10 questions on the GMAT Focus CATs? (Been hearing those are 2nd to none for Quant prep.
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 23 Jan 2010, 21:23
wow what an analysis :)
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Re: (Un) Scientific analysis of gmatprep [#permalink] New post 30 Jan 2010, 04:51
very interesting analysis
Re: (Un) Scientific analysis of gmatprep   [#permalink] 30 Jan 2010, 04:51
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