The Stanford Patient Education Research Center has about 20 years of experience developing, adapting, and testing self-administered scales in English and Spanish for research subjects with chronic diseases. These scales are here at no cost, thanks to funding from the National Institute of Nursing Research (NINR). Includes items, their properties (if available), and coding and scoring instructions. They are also available as downloadable PDF files (using the PDF link at the bottom of each page). The Downloads web page includes links to each PDF scale, as well as to sample questionnaires. Self-Management Behaviors: Exercise; Cognitive Symptom Management; Mental Stress Management/Relaxation; Communication with Physicians; Eating Breakfast with Protein (Diabetes); Glucose Testing (Diabetes). Self-Efficacy: Chronic Disease Self-Efficacy (original scales). 6-Item Chronic Disease Self-Efficacy. Diabetes Self-Efficacy. Arthritis Self-Efficacy. Health Status: Self-Rated Health; Illness Intrusiveness Rating; Fatigue Visual Numeric; Energy/Fatigue; Pain Visual Numeric; Pain Severity/Interference; Shortness of Breath Visual Numeric; 20-Item HAQ-Disability; 8-Item HAQ-Disability; Health Distress; PHQ-9 (Depression); Social/Role Activities Limitations; Hyperglycemia (Diabetes); Hypoglycemia (Diabetes). Health Care Utilization: Visits to Providers; Visits to Providers (Diabetes). Education: Years of Education. Diabetes-Specific Scales: Eating Breakfast with Protein; Glucose Testing; Medication Taking; Diabetes Self-Efficacy; Hyperglycemia (Diabetes; Hypoglycemia (Diabetes)