A detailed explanation of what IQ means and how it is measured - including eight tests you can take! In Test Your IQ, Professor Hans Eysenck, the world-renowned expert on IQ testing, presents an introduction to the meaning, significance, and measurement of intelligence testing that sheds light on the controversy surrounding IQ scores. Is intelligence inherent or is it learned? Does a person's genetic makeup and ethnic origin have any significance in the intelligence testing? Test your IQ and find your own answers to the controversy with eight sets of tests designed especially for this book. Answers to the tests and a graph to convert your results into an IQ score will reveal if you're above average-or maybe even a genius!