In comparison with purely between-subjects experimental designs,one drawback of purely within-subjects experimental designs is that:
A)they usually do not do as good a job of controlling for individual differences
B)they require the use of matching,which is very difficult to perform effectively
C)they open the door to problems such as sequence effects or carryover effects
D)they are usually more costly and time-consuming than between-subjects designs

Question

Quizplus · Accepted Answer

Within-subjects designs expose participants to multiple conditions, potentially leading to sequence effects or carryover effects. These effects occur when a participant's response to a condition is influenced by their previous exposure to a different condition. Therefore, controlling for these effects is essential in within-subjects designs, which can be a drawback compared to between-subjects designs where individual differences are controlled by random assignment. However, matching is not necessary for within-subjects designs, and they are not necessarily more costly or time-consuming than between-subjects designs.

In Comparison with Purely Between-Subjects Experimental Designs,one Drawback of Purely