Jim Harter, Ph.D., is Chief Scientist for Gallup s international workplace management and well-being practices. He coauthored the New York Times" bestseller 12: The Elements of Great Managing", which is based on the largest worldwide study of employee engagement. Since joining Gallup in 1985, Harter has authored or coauthored more than 1,000 research studies, some of which have been reported on in bestselling management books, academic articles, book chapters and publications such as USA Today", The Wall Street Journal" and The New York Times". He is coauthor of Manage Your Human Sigma, publis...