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02 Dec 2010, 11:42
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How exactly do these factor in on the test?
Since the test is a CAT and each subsequent question depends on ones performance on the previous question, how exactly would these fit in?
I suppose one possibility is that they have pre-slotted the difficulty of these question and will slide an unscored 700-level question into the sequence where otherwise a real 700-level question would go.... but then that would seem to be counter to the purpose of have the unscored questions in the first place (for the purpose of determining their correct weight based on test performance).
Also, do we have any idea how the GMATPREP test account for unscored questions in the real test? Are their 9 questions in the GMATPREP quant section that go unscored each time?
Since the test is a CAT and each subsequent question depends on ones performance on the previous question, how exactly would these fit in?
I suppose one possibility is that they have pre-slotted the difficulty of these question and will slide an unscored 700-level question into the sequence where otherwise a real 700-level question would go.... but then that would seem to be counter to the purpose of have the unscored questions in the first place (for the purpose of determining their correct weight based on test performance).
Also, do we have any idea how the GMATPREP test account for unscored questions in the real test? Are their 9 questions in the GMATPREP quant section that go unscored each time?
02 Dec 2010, 11:42
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This may all be pointless rambling but I was just thinking through the fact that any time you run into a question you aren't sure of on the GMAT, you have about a 25% chance that it might not even be scored. So on any given question you come upon in the GMAT, you have (at worst) an 1/5 chance of getting it right on pure guess, but also a 1/4 shot that it's not even scored.
So (and correct me if I'm wrong here), assuming you are equally likely to get stuck on a real vs. unscored question, then the odds of a negative outcome (a question scored wrong) would be the probability of it being scored (3/4) and the probably of a random guess being wrong (4/5).... so 6/10.
Leaving a 40% chance of not being scored wrong on any question to which you do not know the answer?
And if you can eliminate a couple potential answer choices the odds should only go up from there, right?
So (and correct me if I'm wrong here), assuming you are equally likely to get stuck on a real vs. unscored question, then the odds of a negative outcome (a question scored wrong) would be the probability of it being scored (3/4) and the probably of a random guess being wrong (4/5).... so 6/10.
Leaving a 40% chance of not being scored wrong on any question to which you do not know the answer?
And if you can eliminate a couple potential answer choices the odds should only go up from there, right?
03 Dec 2010, 06:19
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man, just do not pay attention to that, I think it is better to forget that and to do your best for every question without asking your self such things. Better to be concentrated on d day...
