OIERP Office of Institutional Effectiveness, Research, and Planning Home › Our Team › Mark Duffield » Single Entry OIERP Home Our Team Reports and Data Quick Facts Fact Book Common Data Set Student Achievement Data Information Request Form Contact OIERP Go back to directory. Add to Address Book. Mark Duffield Assistant Professor Department: Department of Professional Aviation Phone: 318.257.2806Email: duffield@latech.eduOffice: DAVH 329