A repeated-measures ANOVA produced an F-ratio of F = 4.00 with df = 1,14.If the same data were analyzed with a repeated-measures t test,what would be the df value for the t statistic?
A)1
B)14
C)15
D)Cannot determine without more information

Question

Quizplus · Accepted Answer

The degrees of freedom (df) for a repeated-measures t-test is calculated based on the number of subjects minus one. Given that the repeated-measures ANOVA has df = 14 for the within-subjects effect, this indicates there are 15 subjects (since df = N - 1 for within-subjects designs, where N is the number of subjects). Therefore, for a repeated-measures t-test, the df would also be 14, matching the within-subjects df from the ANOVA.

A Repeated-Measures ANOVA Produced an F-Ratio of F = 4