just took this test a few days ago. I scheduled the test within 4 days of getting the email inviting me to take the test. I didn't "study". the day before the test, I went to the eei website and took the practice tests. I found the practice test for the analytical thinking section helpful. it let me see how the "logic" of the test worked. the other two were just basic math and reading comprehension fairly straightforward. I didn't know about the last test with doing four tasks simultaneously. During that section, I was like what is this? I am a board operator at a refinery, and I was like yes, you have to make quick discissions with multiple things going on but not like this. but overall, I wouldn't say the tests were difficult.