Mental Measurements Yearbook with Tests in Print (both products are combined into one database; click link below).
ETS Microfiche Holdings at Purdue - Purdue Libraries has some ETS holdings: Set A (1975/1988) - Set S (1993). They are housed with the Microform Collection on the second floor of the Humanities, Social Science and Education Library (Call number: 371.260973 T2895)
The ETS Test Collection is searchable by title, author, keywords, and other elements.
There is a small collection of tests in the Hicks Repository for the use of Purdue University students and faculty. Please see this page (http://gemini.lib.purdue.edu/psyctests) for specific titles. (Ignore the location specified and use Inter Library Loan to request tests--see below.)
These tests must be requested via the Inter-Library Loan request form. They are to be examined only within libraries' premises, and copies may not be made of these tests. Once logged in to the Inter-Library Loan form, use the "Request Copy" menu choice and specify the title of the test you need. In the Notes/Additional Information field, state that the test is held in the Hicks Repository.