People assessment and talent intelligence is a $4 billion market, growing at a rate of 20% per year. It seems like everybody uses psychometric testing already: 80% of Fortune 500 and 75% of the Times Top 100 companies, UK schools, hospitals and universities all use psychometric tests.
And these are impressive numbers indeed. Yet, they do not really answer the question you are asking: Should I use them? Can they bring real added value to my organization?