If one did a series of a priori pairwise t tests on k 2 groups and analyzed the results using the t distribution, there would be a substantially lower risk of making a Type II error than if one used HSD or Scheffé tests.

Question

If one did a series of a priori pairwise t tests on k > 2 groups and analyzed the results using the t distribution, there would be a substantially lower risk of making a Type II error than if one used HSD or Scheffé tests.

Quizplus · Accepted Answer

When conducting multiple pairwise t-tests, the t-distribution is more conservative than HSD or Scheffé tests, leading to a lower risk of Type II errors (failing to reject the null hypothesis when it is false).

If One Did a Series of a Priori Pairwise T