Different Levels of Measurement

key clarification points to note what they entail:

Nominal- can be a name, the same or different.

• EXAMPLE- sex: Male ____ or Female ____

Ordinal- can be ordered (high to low, etc)

• EXAMPLE- political orientation: from very liberal to very conservative, etc

Interval- distance between each attribute is standardized and equal distance apart.

• EXAMPLE- usually this one is difficult to make a question for, so if there is something about temperature or intelligence testing, it's usually interval.

Ratio- a true zero exists*

EXAMPLE- income differences among households:

$0-10,000

10,000-30,000

30,000-50,000

etc. there is a true zero.