If we want to know whether participants score differently on the first trial than on the second, you should look at the:
A) treatment main effect
B) treatment X counterbalancing interaction
C) counterbalancing main effect
D) sequence effect

Question

Quizplus · Accepted Answer

The treatment X counterbalancing interaction tells us whether participants score differently on the first trial than on the second, depending on which treatment they are in.

If We Want to Know Whether Participants Score Differently on the First