Lecture 2

Question 1

What are the four levels of measurement?

Answer 1

Nominal level of measurement - characterized by data that consists of names, labels or categories

Ordinal level of measurement - involves data that may be arranged in some order (or sequence) but differences between data values either cannot be determined or are meaningless

Interval level of measurement - (like ordinal) the data can be ordered but with additional property that we can determine meaningful amounts of difference between data

Ratio level of measurement - Similar to interval level but modified to include an inherent zero starting point (none of the quantity is present)