Mental Measurements Yearbook Mental Measurements Yearbook, produced by the Buros Institute at the University of Nebraska, provides users with a comprehensive guide to over 2,000 contemporary testing instruments. Designed for an audience ranging from novice test consumers to experienced professionals, the MMY series contains information essential for a complete evaluation of test products within such diverse areas as psychology, education, business, and leadership. MMY provides coverage from Volume 9 to the present.