The Myers-Briggs Type Indicator has been widely used by businesses, universities, the military and other organizations for decades to assess personality. But there is very little, if any, science behind it. Merve Emre, associate professor of English at the University of Oxford and fellow at Worcester College, delves into the story behind the test with her new book, The Personality Brokers: The Strange History of Myers-Briggs and the Birth of Personality Training. Developed by a mother-daughter team with no psychological training, the Myers-Briggs test is supposed to indicate how people perceive and process the world around them. Emre recently joined the  Knowledge at Wharton radio show  on  SiriusXM  to explain why Myers-Briggs continues to captivate our collective imagination as part of the billion personality testing industry. An edited transcript of the conversation follows.…