When comparing the average of one variable to the average of another variable it is important to ensure the variables:
A) have the same number of responses.
B) come from different groups.
C) are measured on the same scale.
D) come from different studies.
E) come from the same group but at different points in time; time series data.

Question

Quizplus · Accepted Answer

In order to compare averages of different variables, it is important to make sure that they are measured on the same scale. Otherwise, the comparison could be misleading and inaccurate.

When Comparing the Average of One Variable to the Average