A researcher administers an intelligence test to 30 college students.
After gathering information on subjects' age, sex, height, weight, political preference, college major, career goals, and socioeconomic status, the researcher administers an attitude survey on current world issues to all 30 subjects.
Identify examples of the following types of variables in the paragraph:
a. discrete
b. continuous
c. categorical
d. quantitative
e. nominal
f. ordinal
g. interval
h. ratio