There are lots of ways a person can fail the psych exams. Answering incorrectly is at the top of the list.
I have no inclination to spend loads of time and effort on describing the tests and what they look for. You've done the test so you realize there are hundreds and hundreds of questions. You can use your Google-fu to find all that on your own.
And no. You cannot study for a psych exam.
Of every one hundred men, ten should not even be here. Eighty are nothing but targets. Nine are real fighters, and we are lucky to have them, for they make the battle. Ah, but the One... One of them is a Warrior... He will bring the others back.
"Wrong door, buddy!"
Let no man's ghost say my training failed him.