Classify the following variables as Quantitative, Ordinal, Identifier, or Categorical.
(1) A poll question asks “in the next 5 years, do you think that things will get better, worse, or stay the same?” The responses were “Better”, “Worse”, “No Change”, and “Don’t Know”.
A.
Categorical
B.
Identifier
C.
Ordinal
D.
Quantitative
(2) A pharmaceutical company conducts an experiment in which a subject takes 200mg of a substance orally. The researchers measure how many hours it takes for ¾ of the substance to exit the bloodstream.
A.
Identifier
B.
Categorical
C.
Ordinal
D.
Quantitative
(3) A medical researcher measures the increase in heart rate of patients who are taking a stress test.
A.
Identifier
B.
Quantitative
C.
Ordinal
D.
Categorical
(4) The race committee at the Kentucky Derby assigns the finishers their rankings from first to last. The values are “1”, “2”, “3”,…
A.
Categorical
B.
Identifier
C.
Quantitative
D.
Ordinal
(5) WVU tracks students’ study hall usage by logging them into a system. One thing they collect is the student email addresses.
A.
Categorical
B.
Ordinal
C.
Identifier
D.
Quantitative