Question Selection Algorithm Upgrade

In our continuing efforts to provide the most accurate GRE Test and GMAT Exam Simulators available, we've just released an update to our adaptive test question selection algorithm. The new algorithm includes adjustments based upon analysis of our question pools and an updated assessment of each question's difficulty ranking. We calculate these rankings by compiling statistics from the thousands of simulated sessions we generate for students each year and we use them along with direct feedback we receive from tutors and students worldwide to regularly enhance our question pools and algorithms.