Mental Measurements Yearbook and Tests in Print This link opens in a new windowA comprehensive guide to over 2,000 contemporary testing instruments. The MMY series contains information essential for a complete evaluation of test products in psychology, education, business, and leadership. TIP is a comprehensive bibliography to all known commercially available tests that are currently in print in English. Includes information on test purpose, publisher, in-print status, price, acronym, intended population, administration times, publication date(s), and author(s).