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Thanks bb!

I have a query that I've been asked for a while (on gmac website) but got no reply. I'll be appreciated for reply from GMAC. Thanks.

A question regarding IR: how does GMAT control the timing issue among test-takers to assure fairness?

1. I've heard from GMAC that everyone gets 8 scored questions (with fixed number of questions in each type) and 4 experimental questions (in random question types). (please correct me if I am wrong)
2. I, along with a lot of students around, found significant discrepancy in the time allocation for different question types. Specifically, a Graph Analysis may take less time than the average of 2.5 min per Q, while a Two-Part Analysis usually demands significantly more time than average.

Taken together, we have concern that the 4 experimental questions may place unfairness among test-takers.
i.e. If student A got more Two-Part Analysis and Multi-source Reasoning, while student B got more Graph Analysis and Table Analysis, student A is much more likely to run out of time in this IR session than student B.

Question: given that different test-takers have different numbers of Qs in each type, how does GMAC take effort to control the length in IR session among different test-takers?
Thanks.