How To Guarantee A Good Score In Aptitude Tests

How can I guarantee a good score?

Aptitude or psychometric tests can't be practised and practised until you get a better score - it doesn't work that way. As aptitude test is timed, because it's very short, because you're put on the spot and it's multiple choice, you cannot practise it and learn a higher score. The aptitude test score you get is the score you're stuck with.