Asmakan wrote:
I feel
kaplan results sometimes boost the grades
Also manhattan
But they are good practice questions.
Posted from my mobile device I did some analysis of my scores and it seems the boosting of scores does happen on
Kaplan and Manhattan. Though scores are boosted on the actual GRE too, it seems slightly higher on Manhattan and
Kaplan.
My raw scores on Manhattan:
Verbal section 1: 10/20
Verbal section 2: 10/20
Expected verbal score: 150, Actual score: 156 (Too much boost)
Math section 1: 13/20
Math section 2: 15/20
Expected quant score: 158, Actual score: 158 (Accurate)
My raw scores on Kaplan:Verbal section 1: 12/20
Verbal section 2: 13/20
Expected verbal score: 155, Actual score: 158 (Should be 156-157)Math section 1: 18/20
Math section 2: 13/20
Expected quant score: 161, Actual score: 164 (Close to accurate, boost of +3 due to hard 2nd section)
Now, let's look at Princeton Review, which has a poor calculation of GRE scores (I'd say worse)
My raw scores on Princeton Review:Verbal section 1: 13/20
Verbal section 2: 11/20
Expected verbal score: 154 (should get maybe +1 boost due to medium section), Actual score: 152Math section 1: 14/20
Math section 2: 17/20
Expected quant score: 161 (should get atleast +1 or +2 boost due to HARD 2nd section), Actual score: 161 (Did not include boost)
As you can see, there are varying degrees of mistakes made by test prep companies in calculation of GRE scores. This makes me believe the scoring algorithm of ETS is difficult to replicate, and hence, scores of their practice tests are closest to being accurate measure of one's performance.