The Doctor of Philosophy is primarily a research degree and requires a thesis-based research master’s degree for admission. It usually requires four courses, completion of the departmental gradate ...

The doctor of philosophy (PhD) in engineering science is a program intended for those who wish to develop advanced independent research skills. Candidates with strong aptitude for research and ...

Purdue University’s online Doctor of Engineering (DEng) program prepares experienced engineers to tackle real-world challenges and lead in their fields through a flexible, interdisciplinary approach.