Respondents are asked to decide where they fit along a scale continuum. These questions contain an ordered set of answers. A common ordinal scale asks about levels of satisfaction.
A closed-ended question contrasts with an open-ended question, which cannot be answered with a simple "yes" or "no", or with a specific piece of information, and which gives the person answering the question scope to give the information that seems to them to be appropriate. Open-ended questions are sometimes phrased as a statement which requires a response.
Examples of open-ended questions:
At the same time, there are closed-ended questions which are sometimes impossible to answer correctly with a yes or no without confusion, for example: "Have you stopped taking heroin?" (if you never took it), see "Loaded question".