Which of the following possibilities is a 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)All of the other options are major concerns.

Question

Quizplus · Accepted Answer

Repeated-measures studies involve measuring the same group of participants multiple times. This can lead to order effects, where the results are influenced by the order of the treatments or measures. This is a serious concern because it can make it difficult to determine the true effect of the treatment independent of order effects. Factors such as practice, fatigue or learning can also have an impact. Therefore, B is the best choice as all of the other options are not necessarily true for all repeated-measures studies.

Which of the Following Possibilities Is a Serious Concern with a Repeated-Measures