Which of the following is a disadvantage of using a within-subjects design?
A) the variability due to participants cannot be estimated statistically
B) treatment order may have an effect on the dependent variable
C) a large number of participants is required
D) the experimental and control groups may not be equivalent to one another

Question

Quizplus · Accepted Answer

Within-subjects designs can be affected by order effects, where the sequence in which treatments are administered can influence the dependent variable. This is because the same participants are exposed to all conditions, and their experiences in one condition can affect their behavior in subsequent conditions.

Which of the Following Is a Disadvantage of Using a Within-Subjects