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Relationship between OG percent correct and GMAT score?

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Relationship between OG percent correct and GMAT score?  [#permalink]

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New post 04 Jan 2011, 16:54
1
Hello everyone,

Can anyone offer an estimate of predicted GMAT scores (Quant, Verbal, and Combined Score) based upon results from the Official Guide 12th Edition and Quant/Verbal 2nd Editions?

I'm currently getting 97% of the Quantitative problems and 91% of the Verbal problems correct (OG 12 and Quant+Verbal 2nd Editions). Is 9 out of 10 good enough to score in the 40-44 range in the Verbal section? Can one assume that a 90% percent correct on the OG guides roughly implies a 90th percentile result on the GMAT? (PS and DS results are 98% and 96%, with CR, RC, and SC results at 94%, 91%, and 90%, respectively). There is not a significant reduction (< 2-3%) in the percentage of problems correct as the problems become more difficult, i.e. later problems in the OG guides.

I have already taken the GMAT (Q:50 (93%), V:33(66%), C:690(88%)), but I am hoping to improve my Verbal score to raise my combined score into the 740-760 range. My Verbal results during this round of study are much improved from my last round of study (from about 65% to 91% correct). I'm hoping a percent correct increase (25% or so) on the Official Guides is indicative of a corresponding percentile result increase (from 66% to around 90%+) on the GMAT exam.

Thank you in advance for any comments,
SJD
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New post 04 Jan 2011, 17:31
It depends...

If the 10% that you are getting wrong are ALL 700-800 level questions - then it probably won't get you that high score you desire - but I'm sure that's not the case.

If you have been redoing questions in the OG - this may be biasing your verbal results slightly. I'd suggest that you do a GMAT Prep CAT to test your refined verbal abilities out on a new set of questions - and it'll be more indicative. You look pretty sorted for Quants (a Q50 is amazing!).

MGMAT also has 1 free CAT on their website I believe.


To better explain it, here's a graph:

Image

As you can see, the CAT keeps adapting to the questions you get right or wrong.

Eventually, it finds a "sweet spot" where you are stuck between two difficult levels - and hence - your ability is determined.

The above graph is an example of "the ideal test taker" - where the test taker gets stuck in a sweet spot very early on, and is consistent.
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New post 28 Mar 2013, 05:54
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This is from the old GMATs (before it went CAT):

Average GMAT Scores

Average GMAT scores always vary from year to year. If you are interested in learning more about average GMAT scores, contact the admissions office at your school(s) of choice. They will be able to tell you what the average GMAT score is based on the scores of their applicants. This will give you something to shoot for when you take the GMAT. The GMAT scores shown below can also give you an idea of what the average score is based on percentiles.
96-99th percentile- 720
79-90th percentile- 630
61-75th percentile- 570
37-50th percentile- 500

The CAT means you can miss 1/2, but if one is testing you at a 780 level question and you miss and it spits out a 750 question next and you get that right...then you literally can do that all test long and wind up with a score over a 750 and below a 780. I'd advise that you take the OLD exams on paper and see how you do....that will give you an idea of the range. That or find 700+ level questions and see how easily you answer those (if too hard then do 650 and 600+ level questions and see how you do).
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New post 29 Mar 2013, 03:24
SJD wrote:
Hello everyone,

Can anyone offer an estimate of predicted GMAT scores (Quant, Verbal, and Combined Score) based upon results from the Official Guide 12th Edition and Quant/Verbal 2nd Editions?

I'm currently getting 97% of the Quantitative problems and 91% of the Verbal problems correct (OG 12 and Quant+Verbal 2nd Editions). Is 9 out of 10 good enough to score in the 40-44 range in the Verbal section? Can one assume that a 90% percent correct on the OG guides roughly implies a 90th percentile result on the GMAT? (PS and DS results are 98% and 96%, with CR, RC, and SC results at 94%, 91%, and 90%, respectively). There is not a significant reduction (< 2-3%) in the percentage of problems correct as the problems become more difficult, i.e. later problems in the OG guides.

I have already taken the GMAT (Q:50 (93%), V:33(66%), C:690(88%)), but I am hoping to improve my Verbal score to raise my combined score into the 740-760 range. My Verbal results during this round of study are much improved from my last round of study (from about 65% to 91% correct). I'm hoping a percent correct increase (25% or so) on the Official Guides is indicative of a corresponding percentile result increase (from 66% to around 90%+) on the GMAT exam.

Thank you in advance for any comments,
SJD


Actually, most of the OG questions are on the easier side, in my opinion. The tougher questions combined with time constraints and adaptive nature make the actual GMAT much harder and hence, the two are not comparable. You will need to take a GMAT prep test instead.
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New post 13 Jan 2018, 19:18
Hi VeritasPrepKarishma

Would you rate only last 1/3 of any edition of any OG revision as HARD?
Does the same logic goes true for quant and verbal review too?
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New post 14 Jan 2018, 14:47
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adkikani wrote:
Hi VeritasPrepKarishma

Would you rate only last 1/3 of any edition of any OG revision as HARD?
Does the same logic goes true for quant and verbal review too?


In every OG, the harder questions are at the end of each section, and the easier questions are at the beginning. That's also true for the Quant and Verbal Review books. (The earliest OG I have is the 2012 edition, so it's possible that this wasn't always the case. However, it's true for all of the books since 2012.)

However, the arrangement of questions isn't perfect. I don't know how the GMAC decides what order to use, but I can think of a few cases where there's an easier question towards the end of a section, or a harder question towards the beginning.

Whether you'd call the last 1/3 'hard' or not depends on what 'hard' means to you. A GMAT question doesn't just have a single difficulty level. Instead, the GMAT uses data on which test-takers get the question right or wrong across the board. For instance, you might have Question X and Question Y. On Question X, 80% of 700-level test-takers get it right, but only 10% of 600-level test-takers get it right. On Question Y, 70% of 700-level test-takers get it right, but 40% of 600-level test-takers get it right. Which question is 'harder'? It's tough to say.
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Re: Relationship between OG percent correct and GMAT score?  [#permalink]

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New post 14 Jan 2018, 16:46
bb Bunuel abhimahna

Does it make sense to use GC Timer in that case to guage difficulty level of OG Qs with
fair accuracy?

Reason: At times I am spending far too much time on analyzing hard qs. It seems
that I need to skip them at present and achieve close to 100% accuracy in easy and medium
qs. This is purely to achieve 600-700 range score in mocks first to advance further.

Let me know if this makes sense.
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New post 14 Jan 2018, 17:43
1
adkikani wrote:
bb Bunuel abhimahna

Does it make sense to use GC Timer in that case to guage difficulty level of OG Qs with
fair accuracy?

Reason: At times I am spending far too much time on analyzing hard qs. It seems
that I need to skip them at present and achieve close to 100% accuracy in easy and medium
qs. This is purely to achieve 600-700 range score in mocks first to advance further.

Let me know if this makes sense.



Yes. It has already been done here: https://gmatclub.com/forum/guide-to-the ... 44081.html
You can find difficulty next to each question on an easy, medium, hard, and very hard scale. If you want even more precise scale, you can find it on each individual question.
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Re: Relationship between OG percent correct and GMAT score?  [#permalink]

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New post 15 Jan 2018, 05:15
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adkikani wrote:
Hi VeritasPrepKarishma

Would you rate only last 1/3 of any edition of any OG revision as HARD?
Does the same logic goes true for quant and verbal review too?


The difficulty level (as we know it) of most of the OG questions will fall below 650. There are certainly some in the 700-800 range and those you will find in the latter part of the section. But mind you, the questions are not strictly arranged in increasing order of difficulty.
Another option is that you can search for OG questions with difficulty level below 600 and 600-700 on GMAT Club and work through them here (though not sure how much time it is actually going to save you!!).
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Re: Relationship between OG percent correct and GMAT score? &nbs [#permalink] 15 Jan 2018, 05:15
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