General Measurement

Question 1

What are the levels of measurement?

Answer 1

RINO

Ratio, Ordinal, Nominal, Interval

Question 2

What is a ratio measurement? Give example

Answer 2

Absolute zero exists.

Example: Weight, number of customers

Question 3

What is interval measurement? Give example

Answer 3

Distance between attributes DOES have meaning. But there is no “true zero” so attributes can be added and subtracted, but not multiplied.

Example: Temperature. 10-20 degrees is the same distance as from 70-80 degrees.

Question 4

What is nominal measurement? Give examples

Answer 4

Where values serve as names or labels only. Gender, male=1 and female=2

Question 5

What is ordinal measurement? Give example

Answer 5

Attributes can be rank-ordered, but distance between attributes do not have meaning. Just tells you if something is more or less of something else in rank.

Example: Educational attainment (1=some college, 2=college degree), Likert scales

Question 6

What are continuous variables? Give example

Answer 6

Values range along a continuum.

Example: Height, weight

Question 7

What are discrete variables? Give example

Answer 7

They are defined by category boundaries.

Example: Gender, political affiliation