Researchers typically try to ____.
A) increase the differences between treatments and decrease the variance within treatments
B) decrease the differences between treatments and increase the variance within treatments
C) increase the differences between treatments and increase the variance within treatments
D) decrease the differences between treatments and decrease the variance within treatments

Question

Quizplus · Accepted Answer

Researchers aim to increase the differences between treatments to better observe the effects of each treatment, while decreasing the variance within treatments helps to ensure that observed differences are due to the treatments themselves and not random variation.

Researchers Typically Try to ____