For the F ratio, if alpha is set at .05, it remains at .05 if comparisons are made between (among)
A) 2 group means
B) 10 group means
C) 45 group means
D) all of these

Question

Quizplus · Accepted Answer

The F ratio in ANOVA is designed to test whether there are any significant differences among group means, regardless of the number of groups being compared. The alpha level set for the test (e.g., .05) does not change based on the number of comparisons being made. This is a key advantage of ANOVA over multiple t-tests, where the risk of Type I error increases with each additional test.

For the F Ratio, If Alpha Is Set at