By A.M. Benis, Sc.D., M.D. This book presents the essentials of the most quantitative personality test available online. The NPA personality test is based on the identification of three interacting genetic traits, namely sanguinity, perfectionism and aggression. The three traits provide the framework for one’s personality type . If you have an interest in personality and have already taken the NPA test, you may have found it to be an exciting experience. Here, in a matter of 20 minutes, you can find displayed not only your NPA type, but 9 different scores describing such qualities as aggression, submissive behavior, narcissism, temperament, focus, introversion-extroversion and tendency to social withdrawal. For instructive purposes, the book devotes five chapters to the analysis of 49 real-life tests, many in categories of personality disorders, behavioral disorders and mental illness. For the specialist, the author has included a full description of the statistical techniques used. An Appendix includes the 50 questions of the test of the original English language version, as well as versions in French, Spanish, German, Polish and Russian. Paperback, 60 color plates, Glossary, 128 pp.