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# Conclusions from GMAT algorithm study based on ESR analyses

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Intern
Joined: 09 Mar 2017
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Re: Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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29 Oct 2017, 07:56
bump. Does anyone know the subsection scores for verbal and how they correspond to verbal?

E.g. 51 on RC is a 95%.
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Re: Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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29 Dec 2017, 14:02
HiLine wrote:

5. Impact of number of questions wrong on scores

These are the rough ranges for the number of questions people have got wrong to achieve a certain score:

Q51: 0-2
Q50: 2-6
Q49: 4-8
Q48: 6-9
Q47: 7-11
Q46: 9-10
Q45: 10-11

Keep in mind that these are out of the 30 Quant questions that count

V50: 0
V48: 1
V47: 2
V46: 3
V44: 3-5
V42: 4-5
V41: 4-6
V40: 7
V38: 8-11
V37: 8-10
V36: 8-10
V35: 9-12
V34: 7-11

Keep in mind that these are out of the 28 Verbal questions that count

Updated. Thanks to everyone who contributed their ESR's!
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29 Dec 2017, 14:03
1
brandon7 wrote:

Thank you for the analysis. Could you clarify how you know the subsection scores? I see percentiles, but not the scores themselves. E.g it'l say you got a 93% in RC, but not a corresponding 40/41 (or whatever number).

Do you know what percentiles correspond to each score? Thanks.

You are welcome. The report includes this information in the big blue boxes titled "Summary".
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Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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Updated on: 20 May 2018, 19:32
Top Contributor
HiLine wrote:

5. Impact of number of questions wrong on scores

These are the rough ranges for the number of questions people have got wrong to achieve a certain score:

Q51: 0-2
Q50: 1-6
Q49: 4-8
Q48: 6-9
Q47: 7-11
Q46: 9-10
Q45: 10-11

Keep in mind that these are out of the 30 Quant questions that count

V50: 0
V48: 1
V47: 2
V46: 2-3
V44: 3-5
V42: 4-5
V41: 4-6
V40: 7
V38: 8-11
V37: 8-10
V36: 8-10
V35: 9-12
V34: 7-11

Keep in mind that these are out of the 28 Verbal questions that count

HiLine, Could you please modify the above table? I've seen examples of a V41 and V40 with as many as 10 wrong.

The Quant tables need to modified significantly as well, in particular on the low end of the range. I have seen scores as low as Q42, for example, with only 9 questions wrong.

Thanks,
-Brian
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One of the only known humans to have taken the GMAT 5 times and scored in the 700s every time (700, 710, 730, 750, 770), including verified section scores of Q50 / V47, as well as personal bests of 8/8 IR (2 times), 6/6 AWA (4 times), 50/51Q and 48/51V.

You can download my official test-taker score report (all scores within the last 5 years) directly from the Pearson Vue website: https://tinyurl.com/y7knw7bt Date of Birth: 09 December 1979.

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Originally posted by mcelroytutoring on 25 Apr 2018, 16:47.
Last edited by mcelroytutoring on 20 May 2018, 19:32, edited 1 time in total.
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Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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20 May 2018, 16:09
mcelroytutoring wrote:
HiLine wrote:

5. Impact of number of questions wrong on scores

These are the rough ranges for the number of questions people have got wrong to achieve a certain score:

Q51: 0-2
Q50: 1-6
Q49: 4-8
Q48: 6-9
Q47: 7-11
Q46: 9-10
Q45: 10-11

Keep in mind that these are out of the 30 Quant questions that count

V50: 0
V48: 1
V47: 2
V46: 2-3
V44: 3-5
V42: 4-5
V41: 4-6
V40: 7
V38: 8-11
V37: 8-10
V36: 8-10
V35: 9-12
V34: 7-11

Keep in mind that these are out of the 28 Verbal questions that count

HiLine, Could you please modify the above table? I've seen examples of a V41 and V40 with as many as 10 wrong.

The Quant tables need to modified significantly as well. I have seen scores as low as Q42, for example, with only 9 questions wrong.

Thanks,
-Brian

Brian, thanks for bringing these examples to my attention. I have indeed seen V40 for 9 questions wrong and have incorporated this data point into the table. The V41 score, isn't it for the new format? I am hesitant to mix the two formats together. As for the Quant part, I decided to set the score cutoff at 45 because that is already at the 60th percentile with about 10 wrong questions. Once we go down past this point the variation is so great that it is a futile exercise to report all the possibilities.
Director
Status: Professional GMAT Tutor
Affiliations: AB, cum laude, Harvard University (Class of '02)
Joined: 10 Jul 2015
Posts: 707
Location: United States (CA)
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GMAT 1: 770 Q47 V48
GMAT 2: 730 Q44 V47
GMAT 3: 750 Q50 V42
GRE 1: Q168 V169
WE: Education (Education)
Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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20 May 2018, 18:23
Top Contributor
HiLine wrote:
Brian, thanks for bringing these examples to my attention. I have indeed seen V40 for 9 questions wrong and have incorporated this data point into the table. The V41 score, isn't it for the new format? I am hesitant to mix the two formats together. As for the Quant part, I decided to set the score cutoff at 45 because that is already at the 60th percentile with about 10 wrong questions. Once we go down past this point the variation is so great that it is a futile exercise to report all the possibilities.

Sure, I understand not wanting to go below Q45 for practical reasons, but if you can score Q42 with only 9 questions wrong, then the low cutoff for Q45 must be even lower than currently indicated (6 or 7 wrong, for example, instead of the listed 10).

I understand that this is just conjecture until we collect more ESR data. However, in general it's safe to assume that the lower the score, the wider the range of potential questions wrong, which suggests that the ranges should be getting larger (not smaller) as section scores decrease, not the other way around.

In other words, it doesn't make sense for Q50 to have a wide range of 1-6 questions wrong, for example, while Q45 would have a narrow range of only 10-11 questions wrong. I would guess that in reality the range of Q45 is more like 6-12 questions wrong.

-Brian
_________________
Harvard grad and 99% GMAT scorer, offering expert, private GMAT tutoring and coaching worldwide since 2002.

One of the only known humans to have taken the GMAT 5 times and scored in the 700s every time (700, 710, 730, 750, 770), including verified section scores of Q50 / V47, as well as personal bests of 8/8 IR (2 times), 6/6 AWA (4 times), 50/51Q and 48/51V.

You can download my official test-taker score report (all scores within the last 5 years) directly from the Pearson Vue website: https://tinyurl.com/y7knw7bt Date of Birth: 09 December 1979.

GMAT Action Plan and Free E-Book - McElroy Tutoring

Contact: mcelroy@post.harvard.edu (I do not respond to PMs on GMAT Club) or find me on reddit: http://www.reddit.com/r/GMATpreparation
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Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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27 May 2018, 20:15
Hi mcelroytutoring

Can you please tell me what is the number of Question that could go wrong to get a 50-51 in Quant and 41-42 in Verbal in the new GMAT format.

Thanks!

mcelroytutoring wrote:
HiLine wrote:
Brian, thanks for bringing these examples to my attention. I have indeed seen V40 for 9 questions wrong and have incorporated this data point into the table. The V41 score, isn't it for the new format? I am hesitant to mix the two formats together. As for the Quant part, I decided to set the score cutoff at 45 because that is already at the 60th percentile with about 10 wrong questions. Once we go down past this point the variation is so great that it is a futile exercise to report all the possibilities.

Sure, I understand not wanting to go below Q45 for practical reasons, but if you can score Q42 with only 9 questions wrong, then the low cutoff for Q45 must be even lower than currently indicated (6 or 7 wrong, for example, instead of the listed 10).

I understand that this is just conjecture until we collect more ESR data. However, in general it's safe to assume that the lower the score, the wider the range of potential questions wrong, which suggests that the ranges should be getting larger (not smaller) as section scores decrease, not the other way around.

In other words, it doesn't make sense for Q50 to have a wide range of 1-6 questions wrong, for example, while Q45 would have a narrow range of only 10-11 questions wrong. I would guess that in reality the range of Q45 is more like 6-12 questions wrong.

-Brian

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Affiliations: AB, cum laude, Harvard University (Class of '02)
Joined: 10 Jul 2015
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Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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28 May 2018, 07:32
Top Contributor
Hi mcelroytutoring

Can you please tell me what is the number of Question that could go wrong to get a 50-51 in Quant and 41-42 in Verbal in the new GMAT format.

Thanks!

Sure.

51Q: 0-2 wrong out of the 28 counted questions.
50Q: 1-6 wrong

41-42V: about 4-6 wrong out of the 30 counted questions.

-Brian
_________________
Harvard grad and 99% GMAT scorer, offering expert, private GMAT tutoring and coaching worldwide since 2002.

One of the only known humans to have taken the GMAT 5 times and scored in the 700s every time (700, 710, 730, 750, 770), including verified section scores of Q50 / V47, as well as personal bests of 8/8 IR (2 times), 6/6 AWA (4 times), 50/51Q and 48/51V.

You can download my official test-taker score report (all scores within the last 5 years) directly from the Pearson Vue website: https://tinyurl.com/y7knw7bt Date of Birth: 09 December 1979.

GMAT Action Plan and Free E-Book - McElroy Tutoring

Contact: mcelroy@post.harvard.edu (I do not respond to PMs on GMAT Club) or find me on reddit: http://www.reddit.com/r/GMATpreparation
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Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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05 Jun 2018, 11:47
1
HiLine wrote:

5. Impact of number of questions wrong on scores

These are the rough ranges for the number of questions people have got wrong to achieve a certain score:

Q51: 0-2
Q50: 1-6
Q49: 4-8
Q48: 6-9
Q47: 7-11
Q46: 9-10
Q45: 10-11

Keep in mind that these are out of the 30 Quant questions that count

V50: 0
V48: 1
V47: 2
V46: 2-3
V44: 3-5
V42: 4-5
V41: 4-6
V40: 7-10
V38: 8-11
V37: 8-10
V36: 8-10
V35: 9-12
V34: 7-11

Keep in mind that these are out of the 28 Verbal questions that count

HiLine
I think the statements should be :

Keep in mind that these are out of the 28 Quant questions that count

Keep in mind that these are out of the 30 Verbal questions that count
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Joined: 19 Mar 2018
Posts: 5
Re: Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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04 Dec 2018, 07:39
HiLine wrote:

5. Impact of number of questions wrong on scores

These are the rough ranges for the number of questions people have got wrong to achieve a certain score:

Q51: 0-2
Q50: 1-6
Q49: 4-8
Q48: 6-9
Q47: 7-11
Q46: 9-10
Q45: 10-11

Keep in mind that these are out of the 30 Quant questions that count

V50: 0
V48: 1
V47: 2
V46: 2-3
V44: 3-5
V42: 4-5
V41: 4-6
V40: 7-10
V38: 8-11
V37: 8-10
V36: 8-10
V35: 9-12
V34: 7-11

Keep in mind that these are out of the 28 Verbal questions that count

Hi! Could you please tell me whether this analysis is still valid (after the GMAT has changed in April 2018).
Shouldn't the two statements be flipped? I.e. Verbal should have 30 questions that count (instead of the above stated 28) and Quant should have 28 questions that count (instead of the above stated 30).
Correct me if Im wrong!
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Re: Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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05 Dec 2018, 10:30
HiLine wrote:

5. Impact of number of questions wrong on scores

Keep in mind that these are out of the 28 Verbal questions that count

Hi! Could you please tell me whether this analysis is still valid (after the GMAT has changed in April 2018).
Shouldn't the two statements be flipped? I.e. Verbal should have 30 questions that count (instead of the above stated 28) and Quant should have 28 questions that count (instead of the above stated 30).
Correct me if Im wrong!

HiLine should correct the original statement. The correct statement should be :Verbal have 30 questions that count and Quant have 28 questions that count
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Re: Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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05 Dec 2018, 19:52
Hi! Could you please tell me whether this analysis is still valid (after the GMAT has changed in April 2018).
Shouldn't the two statements be flipped? I.e. Verbal should have 30 questions that count (instead of the above stated 28) and Quant should have 28 questions that count (instead of the above stated 30).
Correct me if Im wrong!
You're right about the number of questions that count, and that actually helps answer your first question. The change in the total number of questions did not affect the scored portion of the GMAT at all (details here). That means ESRs were also not affected by that change.
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Re: Conclusions from GMAT algorithm study based on ESR analyses  [#permalink]

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23 Jan 2019, 00:04
That's right. And that is because people are still applying with GMAT scores from before the change was made, and therefore the GMAT scores should be comparable and give the same information about the test takers level to the schools.
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Re: Conclusions from GMAT algorithm study based on ESR analyses   [#permalink] 23 Jan 2019, 00:04

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# Conclusions from GMAT algorithm study based on ESR analyses

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