THis is a variation of the personality questionnaires that have been around for a long time. They are advertised on the web, but you have to pay a license fee as a bona fide employer to get them.
One of the earliest was the Myers-Briggs which will show how the questions work and why there isnt really any way of practising for it.
http://en.wikipedia.org/wiki/Myers-Briggs_Type_Indicator
It was recognised that there are difficulties for such a generalised measurement so purpose-specific psychometric tests have been developed, of which the "Safe Personailty Test" is one