Can Studying Philosophy Make You a Better Person?

One of the many people who is considerably smarter and more productive than I am is Prof. Eric Schwitzgebel of the University of California at Riverside. Eric writes the blog, The Splintered Mind, and one of his many research interests is whether there is any empirical connection between studying ethics in a contemporary college or university and the improvement of one's character.  So far, the evidence is that the academic study of ethics does not make you a better person.  Why?