Guillermo conducts an experiment with two conditions using a within-subjects design. If he is counterbalancing, what does this mean?
A) Some participants are presented with multiple stimuli under Condition A; others are presented with multiple stimuli under Condition B.
B) Participants in one condition receive the treatment; participants in the other condition receive a placebo.
C) Half the participants are in Condition A followed by Condition B; the rest are in Condition B followed by Condition A.
D) There is an equal number of men and women in Condition A and Condition B.

Question

Quizplus · Accepted Answer

Counterbalancing means that participants are assigned to different orders of the conditions to eliminate any order effects, such as fatigue or practice. In option C, half of the participants receive Condition A followed by Condition B, while the other half receives Condition B followed by Condition A. This ensures that any effects of the order are evenly distributed across conditions.

Guillermo Conducts an Experiment with Two Conditions Using a Within-Subjects