When using Fisher's LSD method with a given significance level for each interval, the probability of committing a Type I error for at least one comparison increases as the number of ________.
A) pairwise comparisons decreases
B) pairwise comparisons increases
C) sample size increases
D) treatments decreases

Question

Quizplus · Accepted Answer

Fisher's LSD method involves comparing the means of all possible pairs of treatments. As the number of pairwise comparisons increases, the probability of committing a Type I error for at least one comparison also increases, even if the significance level for each interval is held constant.

When Using Fisher's LSD Method with a Given Significance Level