How does the GMAT Test work? What is a CAT?
GMAT is a CAT test – a computer adaptive test. It starts at a medium difficulty and increases question difficulty as long as you answer the questions correctly. Once a question is missed, the difficulty decreases. This methodology allows GMAT to hone exactly on your performance. It is believed that your final score for each of the sections is know after about the 15th, question, but 30 more are given just to ensure that the original assessment was correct.
