Alex Yu wrote:
Disadvantages of non-parametric tests:
Losing precision: Edgington (1995) asserted that when more precise
measurements are available, it is unwise to degrade the precision by
transforming the measurements into ranked data.
So this is an argument against rank-based
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| Jose Manuel Rojo | tlf : +++ 91 + 5-64-29-63|
| C.S.I.C , SPAIN | Email: [EMAIL PROTECTED]
Brett -
Although you may have a conceptual reason for summing the four item scores to
form a composite, the low level of internal consistency that these items display
suggests that they may not be assessing a unitary construct. So, to sum these
four items and label this score as a single
The fact that the shorter scale has low internal consistency doesn't necessarily
mean that the 4 items in question are not unidimensional. It may just be that
the measurement error is large relative to their covariance. Given that the
four items in question are drawn from a scale with
This is great ... I had lost my reference to this site and product.
Thanks!
On Sat, 4 Dec 1999, KO wrote:
Hello:
I would suggest R (aka GNU-S). You cane
find more information about it at
http://www.stat.cmu.edu/R/CRAN/
I highly recommend it.
Sincerely,
Kouros Owzar ([EMAIL
SYSTAT has an excellent log regression procedure and it may be cheap
enough for you.
On Sun, 5 Dec 1999, FourCubed wrote:
Hello everyone! Can anyone tell me the least expensive software for performing
a (conditional) logistic regression. SPSS and SAS are too expensive, and I
don't have
First, check to see if your school doesn't have a stat lab available. Most
major universities have a site where graduate students and others involved in
empirical research can get free assistance. Often, it is in the form of
anothe, but more advanced, graduate student, but many of these
Dear STATISTICA users,
in order to subscribe to the mailing list/group for STATISTICA
users, visit
http://www.computer.privateweb.at/Statistica/
and type just in your e-mail adress and follow the instructions.
Then you will be added to our list.
My very best wishes
[Please forgive me if this esoteric question was answered before in this
newsgroup]
I am using Systat 9.0 for my master's thesis data--the nature of my
analyses depend heavily on Signal Detection Theory. Therefore, of course
I am using the Signal Detection Analysis program in Systat.
It seems
I'd second the comments of finding local help; that's definitely the best
option. If, for whatever reason, that's not available, then, and only then,
consider looking for someone at a distance to help out. If you do have to do
that, offer more detail about what kind of study you're doing: the
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