Data which has a limited range of responses with either a fixed maximum or minimum. This may be discrete data: for example, the number of heads in 6 coin tosses can only be between 0 and 6. You cannot have -3 heads or 7 heads (bounded above and bounded below). Similarly, for continuous data the user response time cannot be negative (bounded below).
Also used in hcistats2e: Chap. 4: page 46
Also known as: bounded, bounded values
Used in glossary entries: bounded below, continuous data, discrete data, response time
