In making three pairwise comparisons, what is the experiment-wise Type I error rate $\alpha$_ew if the comparison-wise Type I error rate $\alpha$ is .10? A).001 B).081 C).271 D).300

Question

Quizplus · Accepted Answer

To calculate the experiment-wise Type I error rate, we use the formula:
Experiment-wise Type I error rate = 1 - (1 - comparison-wise Type I error rate)^number of comparisons
Substituting the given values, we get:
Experiment-wise Type I error rate = 1 - (1 - 0.10)^3
Experiment-wise Type I error rate = 1 - 0.729
Experiment-wise Type I error rate = 0.271
Therefore, the best choice is C, as it gives us the correct experiment-wise Type I error rate.

In Making Three Pairwise Comparisons, What Is the Experiment-Wise Type α\alphaα

In Making Three Pairwise Comparisons, What Is the Experiment-Wise Type $\alpha$