View Full Directory
William Diehl

Dr. William Diehl

Associate Teaching Professor of Education (LLAED); Coordinator of Online Graduate Programs

Phone: 814-867-0228

303 Keller Building
University Park, PA 16802


  • Learning and Performance Systems


  • Lifelong Learning and Adult Education


Dr. Diehl also serves as an associate editor for The American Journal of Distance Education and is an expert reviewer for other academic journals. He is the director of The American Center for the Study of Distance Education and the founder of the International Museum of Distance Education and Technology.


Dr. Diehl is the author and co-author of numerous academic journal articles and academic conference proceedings.  A consultant in the corporate, higher education and government sectors, his professional experience also includes work as a K-12 teacher, technologist, web designer and developer, instructional designer, and multimedia consultant.


He is co-editor of the 4th Edition of the Handbook of Distance Education (January 2019). His book chapters include the Handbook of Distance Education (2nd, 3rd, 4th editions) and The Handbook of mLearning.


Dr. Diehl earned his Ph.D. in Adult Education with a focus in Distance Education from The Pennsylvania State University. His undergraduate degree focused on Elementary Education.

Areas of Expertise

Age Levels



Media Literacy/Education


Computer Technology
Instructional Design

Education Levels

Adult Education

Education Types

Distance Ed

Educational Studies

Educational Theory
History of Ed
International Ed

Methodological Research

Historical research
Qualitative Research
Quantitative Research
View Full Directory