Interview Aptitude test error?

No beating about the bush and trying to make you feel good - i really do think you have blown this particular interview. I do not really think that phoning them and telling them that you DO know what negatives are is going to help. If i was the interviewer i would have to take the view that whether from nerves, stress or whatever, you got confused when under pressure and that is something that for me would preclude you from any position of responsibility. Sorry, but that is the view i would feel obliged to take.