The size of the difference between the red and aqua points in the A condition (left) is bigger than the size of the difference in the B condition. When discussing the main effects we said that it look...The size of the difference between the red and aqua points in the A condition (left) is bigger than the size of the difference in the B condition. When discussing the main effects we said that it looks like the students who were going to get the intervention (IV1 = Yes) already scored higher on the Mindset Quiz, and the Psychology students scored higher on the pretest than English students.