Following a significant omnibus ANOVA F test, Scheffe; MCP is conducted. Which of the following results is never possible?
A) Only one pairwise contrast is significant.
B) Only one complex contrast is significant.
C) None of the pairwise contrasts is significant.
D) None of the linear contrasts is significant.

Question

Quizplus · Accepted Answer

Scheffe's method is designed to test all possible contrasts, including complex ones. If the omnibus ANOVA is significant, at least one contrast (pairwise or complex) should be significant, making option D impossible.

Following a Significant Omnibus ANOVA F Test, Scheffe; MCP Is