If you ever need to take such a test, get yourself in the mindset of "I am a loyal, hard working person", and good results will flow from that one. Just think what kind of employee a company wants to have.
It's easier to fill it out on a test than actually be hard working for a couple of years, so the test is the easy part ;).
My point is more like that it is the best not to be involved with organizations employing such evaluation practices towards their people.
Despite the technical interviews went very well I've quit the recruitment process when faced this mandatory step. I choose not to take those tests. Previous experiences show that where such mechanistic approach is in place those places are not worth working for. I tried to discuss around this kind of test, asking for reasons and proposing substitutes with more position relevant ones, but no, rigid refusal was the answer in polite wrapping. Actually they required two kinds of tests, one personality and one generic ability that included one third - ca. 6 questions - of calculating percentages and sum values quickly, in a financial context. Basically adding and multiplying numbers very quickly. Irrelevant but the results are taken into account seriously.
It's easier to fill it out on a test than actually be hard working for a couple of years, so the test is the easy part ;).