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Sean Tierney joined the faculty in the Department of Mathematics and Computer Science in the fall of 2011 after earning his Master of Arts Degree in Research Methodology from the University of Pittsburgh. He is also a 2005 graduate of Duquesne University, where he received his Bachelor of Arts in Mathematics and Bachelor of Science in Secondary Education. As a teacher of introductory and advanced courses in both statistics and biostatistics, Sean has received numerous awards for teaching excellence; he has also been recognized at the College and University level for exemplary service to the mission.  In the course of his career, Sean has served in a variety of leadership roles across campus, including as Vice-Chair of the Core Curriculum Revision Steering Committee, Director of the RATIO Learning Community in the College of Liberal Arts, and as faculty advisor of Duquesne University’s chapter of Pi Mu Epsilon (which is the national honors society for mathematics).


  • B.A., Mathematics, Duquesne University, 2005
  • B.S., Secondary Math Education, Duquesne University, 2005
  • M.A., Research Methodology, University of Pittsburgh, 2011


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Honors & Awards

  • Presidential Award for Excellence in Teaching, 2023
  • McAnulty College and Graduate School of Liberal Art’s Faculty Excellence in Teaching Award, 2023
  • Duquesne University’s Faculty Collaborator of the Year Award from the Division of Student Life, 2022
  • McAnulty College and Graduate School of Liberal Art’s Faculty Excellence Award for Service to the Mission, 2020
  • National Society of Leadership and Success Excellence in Teaching Award, 2017
  • Faculty Friend Award from Duquesne University’s Office of Residence Life, 2016
  • Duquesne University’s Order of Omega Polished Apple Award (Teaching), 2014
  •  Duquesne University's Omicron Delta Kappa Teacher of the Year Award, 2013
  • MATH 125: Fundamentals of Statistics
  • MATH 225: Introduction to Biostatistics
  • MATH 302W: Probability and Statistics II
  • MATH 335: Biostatistics II