If a statistically significant main effect has three or more levels,then the nature of the relationship is determined using a(n):
A)Tukey HSD procedure
B)informal examination of sample means
C)F ratio
D)t ratio

Question

Quizplus · Accepted Answer

When we have a statistically significant main effect with three or more levels, we need to conduct post-hoc tests to determine the nature of the relationship. Tukey HSD (Honestly Significant Difference) test is a commonly used post-hoc test for multiple comparisons that can be used in this situation. It allows us to determine which group means differ significantly from each other. Therefore, option A is the best choice.

If a Statistically Significant Main Effect Has Three or More