I'm afraid I don't understand your comment. Is dyslexia directly correlated with measures of success? Dyslexia is a good use of IQ testing; either you do worse

I'm afraid I don't understand your comment. Is dyslexia directly correlated with measures of success? Dyslexia is a good use of IQ testing; either you do worse than expected (because of the difficulty reading) or better (compared to your grades) and in either case further investigation could lead to a diagnosis and useful help.