Subject: Simpson's Paradox : demonstration program
From: Norman Marsh
Date: Mon, 20 Jan 1997 17:12:16 +0000
There has been recent discussion on STAT-L regarding Simpson's
Paradox, including worthy contributions by John Vokey and others.
By chance, I have just completed and issued a program which
undertakes to provide numerical demonstrations of Simpson's Paradox.
The program also provides options for a filtering criterion based
upon the value of the Pearson Chi-Squared statistic, and for dealing
with a number of subtables/strata which may be greater than 2.
The program is offered as standard (ISO/ANSI) conformant Pascal
source (ASCII text), and although the source is large it should
complie on any Pascal compiler system. It is located as part of
the resources associated with the discussion list exact-stats at the
UK Mailbase site. Set your browser URL as :
http://www.mailbase.ac.uk/lists/exact-stats/files/genxtabspas.txt
or send a 1-line e-mail message as follows :
to: mailbase@mailbase.ac.uk
message send exact-stats genxtabspas.txt
(this causes the text to be sent to you as an e-mail message).
I should be interested to hear of any feedback from users of this
new resource/toy - messages direct to author please :
jw34@liverpool.ac.uk
Norman Marsh
University of Liverpool
jw34@liverpool.ac.uk
