A repeated-measures ANOVA with six subjects who provide data in four conditions would have what critical value of F ($\alpha$ = .05)?
A) 3.03
B) 3.29
C) 2.90

Question

Quizplus · Accepted Answer

The critical value of F for a repeated-measures ANOVA can be found using an F-distribution table or software, given the degrees of freedom for the within-subjects effect (numerator) and the error term (denominator), and a specified alpha level (commonly .05). For six subjects (N=6) in four conditions, the degrees of freedom for the within-subjects effect (df1) is the number of conditions minus one (4-1=3), and the degrees of freedom for the error term (df2) is the product of df1 and the number of subjects minus one (3*(6-1)=15). Looking up these degrees of freedom in an F-distribution table or using software with an alpha of .05 typically yields a critical value around 3.29.

A Repeated-Measures ANOVA with Six Subjects Who Provide Data in Four