Which possible outcome is of serious concern with a repeated-measures study?
A)You will obtain negative values for the difference scores.
B)The results will be influenced by order effects.
C)The mean difference is due to individual differences rather than treatment differences.
D)You lose too many degrees of freedom.

Question

Which possible outcome is of serious concern with a repeated-measures study?​
A)​You will obtain negative values for the difference scores.
B)​The results will be influenced by order effects.
C)​The mean difference is due to individual differences rather than treatment differences.
D)​You lose too many degrees of freedom.

Quizplus · Accepted Answer

In a repeated-measures study, order effects are a serious concern. These are the effects that result from the order in which the conditions are presented to the participants. For example, if a participant completes the same task multiple times, they may get better at it simply due to practice or fatigue, which can lead to misleading results. Researchers need to control for these effects by counterbalancing the order of conditions or using a within-subjects design.

Which Possible Outcome Is of Serious Concern with a Repeated-Measures