Suppose you are analyzing the results from a study. When you first see the variability between groups, you should probably view that variability as representing
A) the treatment effect
B) random error
C) random error and possibly the treatment effect
D) random error and the treatment effect

Question

Quizplus · Accepted Answer

Initially, variability between groups can be due to random error and possibly the treatment effect, but further analysis is needed to determine the presence and extent of the treatment effect.

Suppose You Are Analyzing the Results from a Study