ertarian”, and so on. However, the different numbers do not have any ordered relationship with one another.</p>
<p><em>Ordinal scale</em>. An ordinal variable satisfies the criteria of identity and magnitude, such that the values can be ordered in terms of their magnitude. For example, we might ask a person with chronic pain to complete a form every day assessing how bad their pain is, using a 1-7 numeric scale. Note that while the person is presumably feeling more pain on a day when they report a 6 versu