Published tests are owned by and available through commercial publishers. The library does not carry copies of most of these tests because most publishers do not sell them to libraries. These tests need to be purchased directly from the publisher, and often require the buyer to have certain credentials of authority. The library has a small collection of commercial tests that may be used for educational purposes.
All of the major test publishers have websites listing their available products. These sites are frequently the best source of information for the most recent editions of a test. Information on the cost of materials and scoring, types of scoring services and related products such as large-print or foreign language versions of tests, and ancillary materials is available on these sites.
The publisher's name and contact information is available in the description or review of the test.
Source: https://www.apa.org/science/programs/testing/find-tests