Within-subjects designs may have the following problem(s):
A) Carryover effects
B) Order effects
C) Reduced error variance
D) a and b

Question

Quizplus · Accepted Answer

Within-subjects designs may suffer from carryover effects and order effects. Carryover effects refer to changes in the dependent variable that occur as a result of the participant's exposure to a previous condition. Order effects refer to possible influences of the order in which conditions are presented on the outcome variable. However, within-subjects designs can also have reduced error variance due to the higher level of control over extraneous variables, making them a valuable design choice in many contexts.

Within-Subjects Designs May Have the Following Problem(s)