Levels of Measurement

Question 1

Describe Nominal Data

Answer 1

Shows categories of data represented by frequencies. The data sets have no relative numerical values (e.g. boys and girls)

Question 2

Describe Ordinal Data

Answer 2

Data can be placed into ascending/descending order, but the intervals between data not necessarily equal (e.g first/second/third)

Question 3

Describe Interval Data

Answer 3

Has equal numerical intervals between scores (e.g. temperature). The interval between 1 + 2 degrees is the same as between 21 + 22 degrees

Question 4

Describe Ratio Data

Answer 4

Has equal intervals between scores and has an absolute or true zero point (e.g. speed)