The Common Fund’s Patient-Reported Outcomes Measurement Information System (PROMIS) program created new paradigms for how clinical research information is collected, used, and reported. PROMIS addressed a need in the clinical research community for a rigorously tested patient reported outcome (PRO) measurement tool that uses recent advances in information technology, psychometrics, and qualitative, cognitive, and health survey research to measure PROs such as pain, fatigue, physical functioning, emotional distress, and social role participation that have a major impact on quality-of-life across a variety of chronic diseases. For current information about PROMIS, please visit the Health measures website. There are 300 measures available that are available in many languages. It can be free of charge and there are multiple ways to administer including computer adaptive tests (including apps for and IPAD). The testing is standardized and validated and the item response theory is used, better answers with fewer questions. Also you are able to compare data to norms and various research.
https://www.healthmeasures.net/explore-measurement-systems/promis