2.5 Levels of Data

A question defines a variable, while an answer to a question defines a value.

Researchers quantify answers to closed-ended questions by assigning a code number to each response (i.e., value). Metric responses can be summarized in many ways, but nonmetric responses can only be summarized by frequency counts and percentages. A question elicits nonmetric values when respondents select a quality from mutually exclusive response options:

  1. Nonmetric questions with categorical response options elicit nominal values (i.e., names). The standard practice is to report the percentages of nominal responses in descending order, such as “The ...

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