Question

Excluding multiple t-tests, all other multiple comparison procedures, such as post-hoc comparisons:

Select one:

a. Inflate α

b. Inflate β

c. Divide α in half.

d. Maintain the probability of a Type I error at the desired level originally set.

Answer 1

option D is correct:

d. Maintain the probability of a Type I error at the desired level originally set.

(Post hoc test: use type I error per test such that overall effect of type I error will remain equal to alpha)