6. QOL scales: Performance Status Scale for Head and Neck Cancer (PSS-HN) (List et al., 1990): This brief 3-part questionnaire will be given by the SLP at each evaluation point; The M.D. Anderson Dysphagia Inventory (MDADI) is a 20-item self-administered scale that investigates the impact of dysphagia on the patient's quality of life; The University of Washington Quality of Life scale (UW QOL) is a 6 item clinician-administered scale.