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Qualitative Scale

The term qualitative is used to describe certain types of information. Qualitative data are described in terms of quality (that is, relative characteristics such as warmth). This is the converse of quantitative, which more precisely describes data in terms of quantity, using formal numerical measurement. Qualitative data are generally (but not always) of less value to scientific research than quantitative data, due to their subjective and intangible nature. It is possible to approximate quantitative data from qualitative data - for instance, asking people to rate their perception of a sensation on a Likert scale. Describing room temperature in terms such as cold, cool, warm, and hot is an example of using a qualitative scale to report observations.

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Nominal Scale

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Measurement Scale


Keith Reynolds

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