When using multiple comparisons, a priori comparisons are more powerful than either the HSD or Scheffé tests.

Name: When using multiple comparisons, a priori comparisons are more powerful than either the HSD or Scheffé tests.
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Question

Quizplus · Accepted Answer

A priori comparisons, also known as planned comparisons, allow for more focused hypotheses and comparisons. This results in increased power to detect differences between groups or treatments compared to the HSD or Scheffé tests which are more general and less focused.

When Using Multiple Comparisons, a Priori Comparisons Are More Powerful