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GMAT Prep Software Analysis and What If Scenarios

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Re: GMAT Prep Software Analysis and What If Scenarios  [#permalink]

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New post 29 May 2018, 00:08
broall wrote:
rahul16singh28 wrote:
broall wrote:

I don't think that GMAC change its scoring algorithm. The score algorithm doesn't care about the number of question answered correctly. It cares about the difficulty of each question.

For example, theoretically, we could still earn V50 if we just answer 50% questions correctly. In the real life, this case will never happen because the question bank doesn't have enough very hard questions for those test takers. Thus, could could see that, in ESR file of Ron Purewal, who has scored perfect 800, the difficulty comes down. The difficulty should go up right?

So, you can't simply conclude that the score algorithm has changed.

P/S: I think that GMAC does make some changes, but that's called system tuning (or calibration). This one shouldn't be called big changes in the core of system.


Hi broall,

As I understand GMAC scoring algorithm (Please correct me if I am wrong) - as you answer the questions correctly the difficulty level goes up. I can't have 7 consecutive answers wrong in First 10 questions and then the GMAC throwing 8th question as 700 Level question and evaluating only the 8th Question correct answer for Scoring.


Sorry, but I dont get your question. Could you explain it?


In the previous post you said that The score algorithm doesn't care about the number of question answered correctly. It cares about the difficulty of each question.

As I understand GMAC scoring algorithm (Please correct me if I am wrong) - as you answer the questions correctly the difficulty level goes up. Suppose, in the first 10 questions, I answer the first 5 questions incorrectly. Will I get 6th question as 700 Level question?? I guess NO. And Suppose, by any chance if get 6th question as 700-Level question and I answer it correctly, Will the system evaluate only 6th question for scoring??
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Re: GMAT Prep Software Analysis and What If Scenarios  [#permalink]

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New post 29 May 2018, 00:16
rahul16singh28 wrote:
In the previous post you said that The score algorithm doesn't care about the number of question answered correctly. It cares about the difficulty of each question.

As I understand GMAC scoring algorithm (Please correct me if I am wrong) - as you answer the questions correctly the difficulty level goes up. Suppose, in the first 10 questions, I answer the first 5 questions incorrectly. Will I get 6th question as 700 Level question?? I guess NO. And Suppose, by any chance if get 6th question as 700-Level question and I answer it correctly, Will the system evaluate only 6th question for scoring??


[Suppose, in the first 10 questions, I answer the first 5 questions incorrectly. Will I get 6th question as 700 Level question??]
Of course No. Your guess is correct. Why? Because the system determines that your real ability is low (ie 500-600), so why should it get you a 700 question?

[And Suppose, by any chance if get 6th question as 700-Level question and I answer it correctly, Will the system evaluate only 6th question for scoring??]
No. LOL, why on earth do you think that the system counts only on those questions you answered correctly? It counts all questions and generate the overall score.
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Re: GMAT Prep Software Analysis and What If Scenarios  [#permalink]

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New post 29 May 2018, 08:15
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The simple answer here is that even when you answer 100% of questions correctly, the question difficulty level does not continue relentlessly upward in a straight line. The test also has other concerns, like feeding you questions of every type/sub-category, and serving you about 15% experimental questions, whose difficulty levels are set in advance.

Also, GMAC is notorious for understating the difficulty level of the questions on the Verbal section. As you stated, even perfect V51 scorers don't see the overall difficulty level go very high, but we know this not to be the case--there are in fact some very difficult questions mixed in there, but the blue line in the ESR only reflects the average difficulty of all questions in that quarter.

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Re: GMAT Prep Software Analysis and What If Scenarios  [#permalink]

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New post 09 Sep 2018, 00:08
Great Initiative!! These analyses and results are really very helpful to devise a foolproof strategy.
I was thinking to follow a specific strategy in verbal, so I wanted to check with everyone here.
Generally, I am a little slow in verbal, it takes 2-2.5 mins for me to dissect SC and almost the same time in CR, which eventually reduces the time for RC. So I was planning to take an approach in which i will answer all questions properly except I will guess 1 RC completely(probably the third one). Is it possible to test this scenario? I am curious to see the results because this will give me much more time to focus all other questions.
Thanks in advance
Re: GMAT Prep Software Analysis and What If Scenarios &nbs [#permalink] 09 Sep 2018, 00:08

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