There are several differences.
First, the aims of the two degrees are different. The PhD is a degree for those who wish to become university researchers in the field of education. The EdD degree in professional practice is for career professionals (teacher leaders, school administrators, clinical faculty, etc) who are looking for an advanced degree that will provide them with experiences that apply knowledge to resolve a problem of practice. Second, the EdD is a cohort program that engages students in academic study, collaborative and individual work as well as discussion and consultation. Emphasis is placed on contributing to the wellness of all through team work and individual achievement. Third, this program is designed for the working professional. Coursework is offered during the summer and on Saturdays throughout the academic year. Lastly, in addition to a dissertation, the EdD Program also requires completion of a group consultancy project that benefits the community.