Posted by Dr. Bob on April 21, 2001, at 17:35:02
In reply to Re: confounding variable, posted by Dr. Bob on April 21, 2001, at 17:33:34
> > Assuming you plan to continue to use these sites (and the posts contained on them) for research purposes, wouldn't introducing a membership fee at this point introduce a major confounding variable?
>
> It would.Like introducing the current email address requirement...
Bob
poster:Dr. Bob
thread:619
URL: http://www.dr-bob.org/babble/admin/20010315/msgs/1070.html