After a significant F test, a researcher used the Scheffe' method to test all pairwise contrasts and found that all contrasts are significant. He then repeated MCP with the Tukey method. What would he find?
A) All pairwise contrasts are significant.
B) Fewer number of contrasts are significant.
C) None of the pairwise contrasts are significant.
D) Anything is possible.

Question

Quizplus · Accepted Answer

The Scheffe' method is more conservative than the Tukey method, meaning if all contrasts are significant with Scheffe', they will also be significant with the less conservative Tukey method.

After a Significant F Test, a Researcher Used the Scheffe