brucebrown
Quick question..
Is the scoring methodology of 800 Score Tests accurate.. I mean its way off from what GMATPrep calculates.. I got a Q49 after 11 Incorrect questions in GMATPrep. and I got a Q43 with the same number of incorrect questions in 800 Score Tests. The incorrect questions were randomly placed and I got only 2 ques incoreect in the first 10 in both the tests. Verbal also generates the results on the same lines..
What's the reason??
It's hard to say whether 800Score's algorithm is accurate based on those test results.
Even the official scoring algorithm isn't as predictable as one might think.
Consider this experiment I performed: I took GMATPrep Practice Test #1 four times, and each time I answered every second question correctly (I did this for the quant section only)
Given that I correctly answered exactly half of the questions each time, you'd expect my quant scores to be roughly the same for all 4 tests.
My 4 scaled scores were: 19, 23, 26 and 42 This represents a percentile range from approximately 8th percentile to the 63rd percentile.
Given these results, what can we say for certain about the official scoring algorithm?
Cheers,
Brent