Type of measurement scale in health questionnaires: nominal; ordinal; interval; ratio. Different types of response scales. When to apply each of them.
Analysing some well-known health questionnaires to measure: health-related quality of life, and wellbeing.

Health-related quality of life: the 36-Item Short Form Survey, SF-36 as well as its shorter versions, SF-12, SF-6. The EQ-5D instruments: EQ-5D-3L, EQ-5D-5L, EQ-5D-5Y (for children). The advantages and disadvantages of each questionnaire were discussed in the class.