Model Type III Sum of Squares [General Sta­tis­tics]

posted by ElMaestro  – Belgium?, 2018-12-21 02:49  – Posting: # 19702
Views: 2,178

Hello obi,

» » Type III SS for a factor A is essentially the SS for A given B and C in the model. I guess you might refer to that as SS(A|B∩C),
»
» OK, so that implies that Type III for factor B and C becomes SS(B|A∩C) and SS(C|A∩B) respectively?

This would be my best guess yes, but please do not rely on anything I say in relation to anything. Or suffer the consequences :-D

» How about Type I SS for factors A, B and C (in that order)? Would it be SS(A), SS(B|A) and SS(C|A∩B) respectively?

As above.

» OK that's true. This could possibly be part of the reason why Type I and type III SS are not the same even in a balanced BE design.

Please explain. When there is balance then the type I and type III SS should be the same in these BE trials, shouldn't they? Your Venn diagram should in my expectation have no overlapping circles.

Le tits now.

Best regards,
ElMaestro

Complete thread:

Activity
 Admin contact
20,246 posts in 4,261 threads, 1,397 registered users;
online 7 (0 registered, 7 guests [including 6 identified bots]).
Forum time (Europe/Vienna): 23:51 UTC

To call the statistician after the experiment is done
may be no more than asking him to perform a postmortem examination:
he may be able to say what the experiment died of.    R.A. Fisher

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5