On the library homepage, click on the tab:  Article Databases.  Then, click on the "D" alphabetical link, and scroll down to the database, Dissertations and Theses - Full Text.  

You can use the "Advanced search" function to narrow your search to a specific author, advisor, department, or school name. 

This catalog link will take you directly to the Dissertations and Theses database:

http://elibrary.wayne.edu/record=e1000343

For more information, visit the WSU Dissertations and Theses Research Guide.