Researchers studying the effectiveness of a diet on heart disease divided the study's participants into two groups-those with Type A personalities and those with Type B personalities. Which scale of measurement characterizes these personality variables?
A)Nominal
B)Ordinal
C)Interval
D)Ratio

Question

Quizplus · Accepted Answer

The Type A and Type B personalities are categorical variables that cannot be ranked or quantified. They are simply two different labels used to distinguish between groups. Therefore, the best choice for the scale of measurement is nominal.

Researchers Studying the Effectiveness of a Diet on Heart Disease