If the results of an experiment using the one-factor between-subjects analysis of variance were summarized as F(2, 30) = 2.46, p .05, then you would know that the number of levels of factor A was.
A)2
B)3
C)4
D)not enough

Question

If the results of an experiment using the one-factor between-subjects analysis of variance were summarized as F(2, 30) = 2.46, p > .05, then you would know that the number of levels of factor A was.
A)2
B)3
C)4
D)not enough

Quizplus · Accepted Answer

The notation F(2, 30) indicates that there are 2 degrees of freedom for the factor (between groups) and 30 degrees of freedom for the error (within groups). The degrees of freedom for the factor are calculated as the number of levels of the factor minus 1. Therefore, if there are 2 degrees of freedom for the factor, it means there were 3 levels of factor A (2 + 1 = 3).

If the Results of an Experiment Using the One-Factor Between-Subjects