Questions that provide numbers as result. Quick and inexpensive way of measuring user satisfaction and collecting feedback about the product. It could indicate the need for a deeper qualitative test.
- Five Critical Quantitative UX Concepts. Measuring U.
- Ten Guidelines for Quantitative Measurement of UX. UX Magazine.
- 7 aspects of successful usability questionnaires. Steve Bromley.
- Better User Research Through Surveys. UX Mastery.