Research Assistant Professor, Northwestern University. Dr. Griffith’s MD, MRCP, FRCR area of expertise is applying measurement science and psychometrics to clinical problems. He has extensive experience both researching and teaching in this area. He’s additionally provided consultation on the topic to a variety of non-profits, pharmaceutical, and medical device companies. He maintains a clinical practice in Chicago focused on cognitive behavioral therapy for adults with anxiety and depression. He has published over 70 papers on various aspects of psychometrics and psychological assessment.