Sibley, Don

Title/s:  Clinical Assistant Professor

Specialty Area: School Psychology

Office #:  Lewis Towers 1151

Phone: 312-915-6872



"When a flower doesn't bloom, you fix the environment in which it grows, not the flower." (Alexander Denn Heijer) Dr. Don Sibley is a Clinical Assistant Professor in the School Psychology program at Loyola University. Dr. Sibley recently completed his EdD in School Psychology at Loyola University, having previously earned his BA in Psychology from the University of New Hampshire and his MS in Clinical Psychology from DePaul University. Dr. Sibley joined the Loyola School of Education faculty as an adjunct in 2011, following 34 years as district-level school psychologist in Arlington Heights SD 25. Dr. Sibley has focused the bulk of his practice and teaching on best practices around the implementation of MTSS. Dr. Sibley is a Charter and Lifetime Member of the Illinois School Psychologists Association, where he has served as a regional director, president, and currently serves as co-chair of the Governmental Affairs Committee. Dr. Sibley is also a long-time member of NASP, a Nationally Certified School Psychologist, and currently serves as co-chair of the NCSP Board.


  • BA, University of New Hamsphire, Durham, NH
  • MS, Depaul University, Chicago, IL
  • EdD, Loyola University Chicago

Research Interests

Dr. Sibley's Research interests have focused on best practices in assessment and intervention for reading disabilities and well as best practices in implementation of MTSS.

Professional & Community Affiliations

  • National Association of School Psychologists (NASP)
  • Illinois School Psychologists Association (ISPA)
  • American Psychological Association (APA)

Courses Taught

  • CIEP 477 Academic Assessments and Interventions


  • Lifetime Member, ISPA, 2018