When would it be appropriate to use the Scheffé multiple comparison rather than the Tukey procedure?
A) When planned comparisons are desired
B) When a family-based comparison technique is desired
C) When complex comparisons are desired
D) When a more liberal technique is desired

Question

Quizplus · Accepted Answer

The Scheffé multiple comparison test is appropriate when complex comparisons are desired, specifically when there are many treatments being compared or the variances are unequal. The Tukey procedure is more appropriate when comparisons are simpler and the variances are equal. Planned comparisons can also be performed with both techniques. However, neither technique is more or less liberal than the other.

When Would It Be Appropriate to Use the Scheffé Multiple