I'm intrigued. Aren't these tests a statistical attempt to determine what your personality type is?
They ask a series of questions and assign you in some kind of matrix of personality types given the results of your scores.
There would be a series of control questions to catch out people who are trying to appear different to what they are.
The results are sent off to some other company for analysis and they come back with who best fits the job profile.
Now comes the books that show you how to cheat the test and pick out the questions that are the contra-indicators, the ones that prove despite your attempt to hide it, that you are disorganised and passive aggressive (or whatever). And now, you can answer that one as well with the help of this book.
Where is this all leading us??? Where are the skilled HR managers who assess the candidates? Why are they paying a third party to perform these tests? What does that show you about the ability of these companies to do their own promotion and hiring properly?
I think these tests are invasive, patronising and show that the people ordering the tests don't have the confidence in themselves (or their managers don't) to use their own skills and intuitions.
I'm afraid I despair of the corporate life

! I've seen every fad come and go in the last decade, first Mission Statements, then "Seven Habits of Highly Effective people", next "Who ate my cheese?", now psychobabble meets sudoku :- the psychometric test!
If you asked whoever suggested this test to take it truthfully then perhaps it would indicate that they're an unimaginitive drone following the latest HR concept du jour.
Good luck beating the test or else for fun just fill it in at random and see the furrowed brow on your HR manager's face.
See some links here for advice
[broken link removed]
http://jobsadvice.guardian.co.uk/tests/story/0,,1181168,00.html