Counterbalance altering design when implementing two different treatments
Can you tell me how to counterbalance altering design when…
Can you tell me how to counterbalance altering design when implementing two different treatments to address order, sequence, time of day, or other plausible order effects that could explain the results?
How does counterbalancing control order effects?
Counterbalancing does not eliminate order or sequence effects, but it distributes them evenly across all experimental conditions so that their influence is “balanced” and does not confound the main effects due to the independent variables.
Random assignment to conditions in between-subjects experiments or counterbalancing of orders of conditions in within-subjects experiments is a fundamental element of experimental research.
The purpose of these techniques is to control extraneous variables so that they do not become confounding variables.

