Description
Cochran's Q test is
- H0: The treatments are equally effective.
- Ha: There is a difference in effectiveness among treatments.
The Cochran's Q test statistic is
where
- k is the number of treatments
- X• j is the column total for the jth treatment
- b is the number of blocks
- Xi • is the row total for the ith block
- N is the grand total
Read more about this topic: Cochran's Q Test
Famous quotes containing the word description:
“An intentional object is given by a word or a phrase which gives a description under which.”
—Gertrude Elizabeth Margaret Anscombe (b. 1919)
“Everything to which we concede existence is a posit from the standpoint of a description of the theory-building process, and simultaneously real from the standpoint of the theory that is being built. Nor let us look down on the standpoint of the theory as make-believe; for we can never do better than occupy the standpoint of some theory or other, the best we can muster at the time.”
—Willard Van Orman Quine (b. 1908)
“I fancy it must be the quantity of animal food eaten by the English which renders their character insusceptible of civilisation. I suspect it is in their kitchens and not in their churches that their reformation must be worked, and that Missionaries of that description from [France] would avail more than those who should endeavor to tame them by precepts of religion or philosophy.”
—Thomas Jefferson (1743–1826)