A further note. The Cushny Peebles article can be viewed here:
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1465734
and the page with the data is here:
http://www.pubmedcentral.nih.gov/pagerender.fcgi?artid=1465734pageindex=9
A machine readable version of the
When reading the documentation for the sleep data set in R, the
impression is clear, this is an independent groups kind of design
(two groups of 10 subjects each). However, when browsing the original
article (referred to in the help file), my impression is quite clear,
this is really a
Yes, you refer to
Cushny, A. R. and Peebles, A. R. The action of optical isomers: II
hyoscines. The Journal of Physiology, 1905, 32: 501.510.
which was used by 'Student' to illustrate the paired t-test.
This is indeed a crossover design.
On Wed, 17 Jan 2007, Tom Backer Johnsen
