When renewing a nursing license, nurses are asked to indicate their area of specialization. This datum is measured on which scale?
a. Interval
b. Nominal
c. Ordinal
d. Ratio
ANS: B
Nominal-scale measurement is used when data can be organized into categories.
Interval scales have equal numeric divisions between groupings. The correct answer is nominal scale.
Ordinal scales are used when data can be ranked.
Ratio scales have a true zero.
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