A one-factor within-subjects analysis of variance revealed that the means differ significantly, F(2, 10) = 12.37, MSA × S = 10.62, p

Question

A one-factor within-subjects analysis of variance revealed that the means differ significantly, F(2, 10) = 12.37, MSA × S = 10.62, p < .05. Given this
A)2
B)3
C)4
D)not enough

Quizplus · Accepted Answer

The F-test result indicates that there is a significant difference between at least two of the means, but we cannot determine how many groups there are without additional information. However, the F-test degrees of freedom show that there were 2 groups (or conditions) and a total of 10 participants, which is consistent with a within-subjects design. Therefore, the best choice is B, which suggests that there were 3 means (or levels) being compared.

A One-Factor Within-Subjects Analysis of Variance Revealed That the Means