New brooms [General Sta­tis­tics]

posted by Helmut Homepage – Vienna, Austria, 2009-12-10 20:19 (6032 d 09:22 ago) – Posting: # 4464
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Dear Stefano!

❝ I was thinking again about the interpretation of sequence effect in designs with more than two treatments and an equal number of periods. Probably, if we assume that carryover of higher order are extremely unlikely, its interpretation is analogous to that given in 2x2 design.


Yes, and unless a replicate design is used we have no means to sort things out in a simple higher-order Xover.

❝ […] the book by Jones and Kenward shows an interesting feature.


Maybe this a historical leftover? According to my - vanishing - memory Byron Jones talked much more about carry-over in the first edition. But Stephen layed siege to this concept (his first edition on Xover studies can be read as a tractatus contra vectum transitus*). ;-)
Step by step Byron retreated. I would also recommend to invest in Patterson'/Jones' textbook from 2006 (reference). If you want to dig even deeper into the matter, I can give you Byron's e-mail (he is a very nice guy).

* Essay against carry-over

P.S.: A nice paper for the bedside table by Stephen.

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