Positions
| Dates | Position | Department | Institution |
| 2011 – 2012 | Senior Research Scholar and Senior Lecturer, ISM Fellow | Institute of Sacred Music | Yale University |
| 2005 – 2010 | Professor and Chair of Ritual Studies
Project Director: Project Affiliate: |
Faculty of Religious Studies | Radboud University Nijmegen (the Netherlands) |
| 1974 – 2008 | Professor of Religion and Culture | Religion and Culture | Wilfrid Laurier University (Canada) |
| 1997 – 1998 | Visiting Professor | Religious Studies | McGill University |
| 1992 – 1994 | Distinguished Visiting Professor | Religious Studies | University of Colorado at Boulder |
| 1987 | Visiting Professor | Ritual Studies, Liturgy | University of Notre Dame |
| 1985 – 1986 | Visiting Professor | Religious Studies | University of Pittsburgh |
| 1970 – 1974 | Assistant Professor | Religious Studies | Lawrence University |
| 1969 – 1970 | Instructor | Religious Studies | Barnard College, Columbia University |