WHOQOL is typically measured using structured questionnaires, such as WHOQOL-100 and WHOQOL-BREF. The WHOQOL-100 is a comprehensive version, while WHOQOL-BREF is a shorter version with 26 items. Respondents rate their experiences on a 5-point Likert scale, and the results are analyzed to provide a profile of QoL across different domains.
