J. Williams wrote:
On Mon, 25 Feb 2002 15:17:55 -0800, Jay Tanzman [EMAIL PROTECTED]
wrote:
I just got chewed out by my boss for modelling the means of some 7-point
semantic differential scales. The scales were part of a written,
self-administered questionnaire, and were laid out like
Art Kendall wrote:
[snip good points]
in your quasi-experiment you can possibly contrast different levels of specific
pollutants, as well as kinds of pollutants, in different rivers at different
times.
I'm not a biologist, but I would be amazed if temperature did not affect
population
SSCHEINE wrote:
Let me take a (somewhat) contrarian position to those previously
expressed. An experiment is any test of a hypothesis. An experiment can
involve the use of observational (unmanipulated) data, as long as the
hypothesis is clearly stated prior to the collection of the data.
Voltolini wrote:
Hi,
I was reading a definition of experiment in science to be used in a
lecture and the use of treatments and controls are an important feature of
an experiment but my doubt is... is it possible to plan an experiment
without a control and call this as an
Voltolini wrote:
Hi,
I was reading a definition of experiment in science to be used in a
lecture and the use of treatments and controls are an important feature of
an experiment but my doubt is... is it possible to plan an experiment
without a control and call this as an
Wuzzy [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
And that sounds impossible. I suspect a programming error.
-Jay
you're right i programmed a food database incorrectly but i've redone
it and yep the correlation was only 0.20 for kcal or so.
it is
Wuzzy [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Hi Rich, okay i'll post the reason why I ask:
It is because I am validating a 24hr dietary recall questionnaire
using
a food frequency questionnaire:
It doesn't make sense to do that.
Amazingly I got a
Eric Miller wrote:
Dear Friends,
I had difficulty reading huge excel data into sas.
I tried the following code, but it always says physical file does not
exist. I need your help.
My code:
===
filename import dde 'excel|sheet1!r2c1:r379c15';
data xray;
infile
David Heiser wrote:
I find it extremely difficult to interpret multivariate equations.
Are there any good books on conceptualizing the equation?
Modelling the effects of macronutrients on risk of disease is complicated
because the sum of the macronutrients in the diet equal the total energy
