Chapter 2

Question 1

Nominal (categorical)

Answer 1

Numbers or other symbols are assigned to a set of categories for the purpose of naming, labeling, or classifying the observations
ex. political party, religion, race.

Question 2

Ordinal:

Answer 2

Nominal levels that can be ranked from low to high ex. social class (upper, middle, working)

Question 3

Ordinal variable:

Answer 3

a variable that reports order without natural units:
- 1=strongly disagree, 2=disagree,3= agree, 4=strongly agree

Question 4

Interval-ratio:

Answer 4

All cases are expressed in the same unit
ec. age, income, SAT scores