A general health status questionnaire designed to measure the well-being and everyday function of people who have chronic disease. Although it is not specific for Parkinson’s disease, clinicians and researchers sometimes use the SF-36 to get a broad perspective of the person’s perception of Parkinson’s disease’s overall effect on his or her daily activities. The SF-36 contains 36 questions, rated from 0 to 100. The higher the score, the greater the person’s satisfaction with his or her ability to function on a daily basis. The SF-36 is a proprietary assessment tool.