The psychological evaluation in the entrance exam is separate from the psychological evaluation that occurs later on. The later evaluation is a one-on-one interview. The evaluation in the exam is a multiple choice test where those taking an exam have to respond to questions regarding their behavior or thought in relation to certain situation. They try answer to the best of their abilities.
Many of the questions in the psych evaluation portion aren't too dissimilar to questions in the Heroic Aptitude Test. Switching keys doesn't happen often but it's something that does occur.