st: on-line interactive statistics tutorials for absolute beginners

["Christopher W. Ryan" <cryan@binghamton.edu>]

I am setting out to design an elective for fourth year medical students 
in "information mastery," critical appraisal of research literature, and 
statistical reasoning.  This will be for people destined to be more 
"consumers" of the literature, rather than producers.  And medical 
students are not known for their interest in things mathematical.  So 
the emphasis will not be on doing calculations or running statistical 
tests.  I will  talk mostly about non-statistical issues of study 
design, but I will want to touch upon some statistical concepts, in very 
general terms:

1.  what tests are useful for what types of data and research questions,
2.  concepts of populations, samples, sampling distributions,
3.  the logic behind classical statistical inference,
4.  concepts of central tendency and dispersion
5.  distinction between P-value and effect size (statistical 
significance in  contrast to clinical meaningfulness)
6.  some of the common dangers in interpreting statistics in studies 
(multiple comparisons, joint outcome variables (like dead-or-disabled), 
and stepwise regression.

Does anyone have any suggestions for good on-line interactive tutorials 
on any of these topics?

Thanks.

--Chris
--
Christopher W. Ryan, MD
SUNY Upstate Medical University Clinical Campus at Binghamton
and Wilson Family Practice Residency, Johnson City, NY
cryanatbinghamtondotedu
GnuPG and PGP public keys available at http://pgp.mit.edu

"If you want to build a ship, don't drum up the men to gather wood, 
divide the work and give orders. Instead, teach them to yearn for the 
vast and endless sea."  [Antoine de St. Exupery]

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