When choosing the levels of the independent variable, it is important
A) not to have more than two or three
B) to focus on the higher levels
C) to focus on the lower levels
D) to cover as much of the range as possible

Question

Quizplus · Accepted Answer

Choosing levels of the independent variable that cover as much of the range as possible ensures that any potential relationships or effects can be properly evaluated and observed. Having only two or three levels may not capture the full extent of the relationship between the variables. Focusing on higher or lower levels may also fail to capture important information about the relationship. Therefore, it is best to cover as much of the range as possible.

When Choosing the Levels of the Independent Variable, It Is