Which of the following means comparison analyses is the most conservative, in the sense that it most reduces the likelihood of making a Type 1 error?
A) A contrast analysis
B) The Fisher least significant difference test
C) The Scheffé means comparison test
D) The Tukey honestly significantly difference test

Question

Quizplus · Accepted Answer

The Scheffé means comparison test is the most conservative among the options listed. It is designed to control the overall Type I error rate when comparing multiple groups, making it less likely to incorrectly reject the null hypothesis (thus reducing the likelihood of a Type 1 error) compared to other, less conservative methods.

Which of the Following Means Comparison Analyses Is the Most