The Theses and Dissertations collection includes dissertations and masters theses written by PSU students who have chosen to make their work available on the open Web.
All data and content associated with the Portland State University Dissertations and Theses Collection are protected by United States copyright law. Duplication or sale of all or part of any of the data or images is not permitted without consent of the copyright holder. Use of the content is strictly for non-commercial, educational use.