Kenward-Roger - links [RSABE / ABEL]

posted by PharmCat  – Russia, 2019-11-09 00:51 (384 d 23:09 ago) – Posting: # 20775
Views: 4,965

I look this or here.

"Lemma 7.2.1 When l = 1, the Satterthwaite, the K-R and the proposed methods give
the same estimate of the denominator degrees of freedom"
p.98 proof in source.

For coefficient estimate l = 1, and thou I thought they should be equal (and the really equal in SAS).

But when DDFM=KENWARDROGER is set - variance-covariance matrix of the fixed effects is corrected too and resulting CI would be differ - this I didn’t take it into account.

Complete thread:

 Admin contact
21,214 posts in 4,427 threads, 1,482 registered users;
online 8 (0 registered, 8 guests [including 6 identified bots]).
Forum time: Saturday 00:01 CET (Europe/Vienna)

Science may be described as the art of systematic over-simplification –
the art of discerning what we may with advantage omit.    Karl R. Popper

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz