In the second of two programmes Dr Raj Persaud examines how we measure intelligence.
He looks at the nature of a personality and assesses personality testing. Can people really be categorised by discovering how neurotic they are or how high they score on an extrovert scale? Is it possible to cheat on such tests? Should a 40-page test have a bearing on whether someone gets the job? Dr Raj Persaud attempts to answer these questions while undergoing tests to discover the dark side to his own personality and his aptitude for being a psychiatrist-with some surprising results.