Update.
I have recently undertaken psychometric tests for a well-known operator in Europe after I failed the Advanced Compass test in December for another airline. This one was harder and I passed it. The psychological assessment was even more detailed than just a 5-minute talk with a young blonde, attractive aviation psychologist. SkyTest is all you need. These batteries of tests are pretty much useless in my opinion if all you need is to practice a little bit. And I thought they were supposed to determine who is cut for the job or not.
That's the assessors' job and they do it better.