1. Passing an aptitude test means that you have an aptitude for passing an aptitude test, nothing else.
2. Personality tests can be learned and it is possible to mask most (but not all) personality traits and appear to be what you believe the HR people think they are looking for. This is taught by good lecturers at business school along with reading papers on peoples desks upside down.
Having said that, there has to be some form of screening and one might as well do it on the basis of mental acuity and perceived personality as anything else. THe problem that arises that everyone here is complaining about is false negatives - rejection of people who would make perfectly good pilots.
However it is a lot cheaper than using a method that produces a lot of false positives.....
