what do people think about I.Q. tests. I took an I.Q. test last year which I did very badly on ( I.Q. of 80 ), really if my ability was that low I shouldn't be able to pass an engineering degree ( I am quite good at algebra) and learn a foreign language ( mandarin Chinese) I was wondering if ADHD might affect this. It worries me a bit only because more and more companies are using these types of tests in hiring employees.