A multiple comparison technique with which of the following characteristics would be the most powerful?
A) Planned, contrast-based
B) Planned, family-based
C) Post hoc, contrast-based
D) Post hoc, family-based

Question

Quizplus · Accepted Answer

Planned (a priori) comparisons, especially those based on specific contrasts, are generally more powerful than post hoc analyses because they are designed to test specific hypotheses rather than to explore data after it has been collected. Contrast-based comparisons focus on differences between specific groups or conditions, allowing for more targeted and thus potentially more powerful analyses.

A Multiple Comparison Technique with Which of the Following Characteristics