According to the text,the constant sum should be considered an ordinal scale.

Question

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The constant sum is a type of ordinal scale, where respondents allocate a fixed total amount of points to a set of items based on their perceived importance or preference. This scale does not represent equal intervals between the points assigned, which is a characteristic of interval scales. Therefore, the constant sum is not a true ratio scale, where absolute zero has meaning and ratios between values can be calculated.

According to the Text,the Constant Sum Should Be Considered an Ordinal