Which characteristic is an essential criterion for categorizing an object, event, or fact as nominal level data? (Select all that apply.)
a. The degree of the characteristic must be positively related to the number assigned.
b. Rank orders must be calculated for meaningful interpretation.
c. Categories must be mutually exclusive.
d. Category ranges cannot overlap.
ANS: C, D
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Correct This is the definition of nominal-level data; categories are mutually exclusive.
Category ranges must not overlap; each score fits into only one category.
Incorrect This answer does not fit categorizing an object, event, or fact as nominal level.
Rank orders apply to ordinal-level data, not to nominal-level data.
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