Published in August 2008, WAISIV is the most widely used intelligence test for adults in the world. Substantive changes were made to the WAIS-IV from the WAIS-III, leaving clinicians with questions as to how to use and interpret the measure effectively. Written by the creators of the new test, this book serves as the ultimate insider's guide, providing users with the kind of access to norms and data that would be unavailable to any subsequent book on clinical use of this measure.