Instruments are assessments, scales, questionnaires, measures, surveys, inventories, and tests used in qualitative and quantitative research. Some instruments are proprietary, some are not.
The Mental Measurements Yearbook (MMY) provides an evaluation of over 2,700 testing instruments. Only commercially available tests are included in the MMY. The series began in 1938 and provides information, critical reviews, and bibliographic references on the construction, use, and validity of the tests.
The Mental Measurements Yearbook is a book series. Each edition of the MMY is unique in that the editors vary and the information contained in them varies. So, reviews that appear in the Sixteenth Mental Measurements Yearbook will not appear in the Seventeenth Mental Measurements Yearbook.
Tests in Print (TIP)is a compilation of all known commercially available tests that are in print. TIP provides information to users including test purpose, test publisher, in-print status, price, test acronym, intended test population, administration times, publication date(s), and test author(s). A score index permits users to identify what is being measured by each test. Tests in Print also guides readers to critical, candid test reviews published in the Mental Measurements Yearbook series.