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In Episode 4 of our GMAT Ninja CR series, we tackle the most intimidating CR question type: Boldface & "Legalese" questions. If you've ever stared at an answer choice that reads, "The first is a consideration introduced to counter a position that...- May 14
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15 Apr 2015, 19:38
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Hello,
I have done 2 simulation tests from the Economist Tutor and would like to better understand the rationale for my results, notably in Verbal.
In test 1, I made my first mistake by the 3rd question, had 7 out of the first 10 questions right, then had a series of 10 errors in 12 questions, and with a total of 16 errors, ended up with V41 (93%).
In test 2, I made my first mistake on the 4th question, had 7 out of the first 10 questions right (albeit the 3 incorrect answers were consecutive), did not have any major chain of consecutive mistakes, except for 4 questions wrong that I've got a bit towards the end, and with a total of 15 errors, ended up with V33 (67%).
My actual performance vis-a-vis the results I got seems a bit erratic. Would anyone have a reasonable explanation or is it as weird as it sounds?
Thanks.
I have done 2 simulation tests from the Economist Tutor and would like to better understand the rationale for my results, notably in Verbal.
In test 1, I made my first mistake by the 3rd question, had 7 out of the first 10 questions right, then had a series of 10 errors in 12 questions, and with a total of 16 errors, ended up with V41 (93%).
In test 2, I made my first mistake on the 4th question, had 7 out of the first 10 questions right (albeit the 3 incorrect answers were consecutive), did not have any major chain of consecutive mistakes, except for 4 questions wrong that I've got a bit towards the end, and with a total of 15 errors, ended up with V33 (67%).
My actual performance vis-a-vis the results I got seems a bit erratic. Would anyone have a reasonable explanation or is it as weird as it sounds?
Thanks.
15 Apr 2015, 20:52
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Hi Iced377,
The scoring algorithm on the Official GMAT is far more complicated than most people realize. It takes into account a number of different factors, including the relative difficulty of the question, whether you were expected to get it correct or not, the placement of the question, what's going on "around it", the "strings" of correct and incorrect answers, whether the question even counts or not (some questions are "experimental" and are worth 0), if you leave questions unanswered and incur a penalty, etc. As such, you shouldn't be spending time trying to figure it all out. You'd be better served working on building up your skills.
Since that algorithm is proprietary, no GMAT company has an exact match for it, thus CAT scores can vary a bit based on the 'biases' involved in their respective designs. Your scores are all 'in range' of one another though, so assuming that you took the ENTIRE CAT and did so under realistic 'test-like' conditions, then these scores serve as a reasonably accurate assessment of your abilities.
A far more useful gauge would be to review each CAT and determine how many questions you SHOULD have gotten correct, but didn't (due to a silly/little mistake). Those mistakes are the things that you have to fix to score at a higher level.
I have a few questions about how you took these CATs:
1) Did you take the ENTIRE CAT (including the Essay and IR sections)?
2) Did you take each at the same time of day as your Official GMAT?
3) Did you take them under 'testlike' conditions?
GMAT assassins aren't born, they're made,
Rich
The scoring algorithm on the Official GMAT is far more complicated than most people realize. It takes into account a number of different factors, including the relative difficulty of the question, whether you were expected to get it correct or not, the placement of the question, what's going on "around it", the "strings" of correct and incorrect answers, whether the question even counts or not (some questions are "experimental" and are worth 0), if you leave questions unanswered and incur a penalty, etc. As such, you shouldn't be spending time trying to figure it all out. You'd be better served working on building up your skills.
Since that algorithm is proprietary, no GMAT company has an exact match for it, thus CAT scores can vary a bit based on the 'biases' involved in their respective designs. Your scores are all 'in range' of one another though, so assuming that you took the ENTIRE CAT and did so under realistic 'test-like' conditions, then these scores serve as a reasonably accurate assessment of your abilities.
A far more useful gauge would be to review each CAT and determine how many questions you SHOULD have gotten correct, but didn't (due to a silly/little mistake). Those mistakes are the things that you have to fix to score at a higher level.
I have a few questions about how you took these CATs:
1) Did you take the ENTIRE CAT (including the Essay and IR sections)?
2) Did you take each at the same time of day as your Official GMAT?
3) Did you take them under 'testlike' conditions?
GMAT assassins aren't born, they're made,
Rich
