Many companies get prospective hires, and existing staff to indulge in self-rating. I have always thought that this was an absurd exercise since the science is in that one can never rate oneself accurately. Research from the University of Toronto and published today in the Journal of Personality has found that almost anybody is better qualified to rate someone than the person themselves. What’s more, they have found that those who rated themselves highly for their agreeableness and conscientiousness (the most predictive for performance) performed worse on the job than other people. Why don’t I find this surprising?