教育学博士的位置在哪里

Where is the place of Ed.D.?Are those present courses for them necessary? Arthur Levine, dean of Education School of Columbia University who is leaving his post, proposes,on the basis of the findings of his own investigation and research, that the present education doctorate and the relative courses be canceled,that new courses which combine education and management be offered, and that new educational management doctorate be established. His speech has given rise to hot debate in American educational circles.