Which type of metric is referred to as a non-scale metric?

The correct answer refers to survey or database metrics as non-scale metrics because they comprise data that doesn't rely on a scaled measurement system. Non-scale metrics typically include categorical or nominal data, which exist outside of a numerical or rating scale framework. For instance, answers in a survey that request yes/no responses or options that reflect discrete categories can be classified as non-scale metrics since they provide straightforward, qualitative insights rather than quantifiable scores on a scale.

In contrast, numerical assessments, rating scales, and qualitative feedback usually involve some degree of measurement or subjective interpretation that can be quantified or categorized in a more traditional sense. Numerical assessments and rating scales have inherent scales that score responses, while qualitative feedback, while nuanced, is often associated with analysis that attempts to distill themes, sentiments, or other factors from scale-based responses. Therefore, survey or database metrics stand out as non-scale due to their focus on distinct groups or values rather than a continuum or gradation reflected in other metric types.