When doing an F ratio, subtracting the constant, 1, from the total number of sample groups yields the
A) alpha error
B) between degrees of freedom
C) within degrees of freedom
D) total degrees of freedom

Question

Quizplus · Accepted Answer

The formula for the F ratio is (Variance between groups)/(Variance within groups). The degrees of freedom for the between group variance is equal to the number of groups minus 1, which is the total number of sample groups minus the constant 1 (B). The degrees of freedom for the within group variance is equal to the total number of observations minus the number of groups, which is the total degrees of freedom minus the constant 1 (D). Therefore, the correct answer is B, between degrees of freedom.

When Doing an F Ratio, Subtracting the Constant, 1, from the Total