Totally agree with Zacsmaster but to give you a bit more info...
You will usually be given a statement like 'I enjoy working on my own with minimal supervision'. You would then usually get a chioce of responses - Agree Strongly, Agree, neither agree nor disagree, Disagree and Disagree Strongly.
Depending on the answers you give, they are supposed to be able to tell whether you are a leader, a team player, a 'doer', etc etc
And the questions are set in such a way that you can't answer what you think they want to hear as another question worded differently will catch you out.
If you google, there are quite a few free ones online that you can try.