range of standardized regression coefficients

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range of standardized regression coefficients

vilas
What would be the range of standardized regression coefficients in theory? I rarely see standardized regression coefficients greater than 1 or -1. Then, are the coefficients unreliable? Does it mean that the data violate statistical assumptions (e.g., normal distribution)? Comments will be greatly appreciated. Thank you!
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Re: range of standardized regression coefficients

statisticsdoc
Standardized coefficients have a range between -1 and 1 algebraically.  Software packages sometimes generate coefficiebts slightly outside of this range (it can happen when the independent variables are extremely collinear).
Hth
Steve
www.statisticsdoc.com
------Original Message------
From: vilas
Sender: SPSSX(r) Discussion
To: [hidden email]
ReplyTo: vilas
Subject: range of standardized regression coefficients
Sent: Dec 15, 2009 1:51 PM

What would be the range of standardized regression coefficients in theory? I
rarely see standardized regression coefficients greater than 1 or -1. Then,
are the coefficients unreliable? Does it mean that the data violate
statistical assumptions (e.g., normal distribution)? Comments will be
greatly appreciated. Thank you!
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Re: range of standardized regression coefficients

Bruce Weaver
Administrator
statisticsdoc wrote
Standardized coefficients have a range between -1 and 1 algebraically.  Software packages sometimes generate coefficiebts slightly outside of this range (it can happen when the independent variables are extremely collinear).
Hth
Steve
www.statisticsdoc.com
From that website:

"I am an Oxford-educated Ph.D. with over twenty years of  experience in statistical consulting and research design."

Also from that website:

 Education       B.A. (First Class Honours), University of Oxford
                     Ph.D. (Psychology; Minor in Quantitative Methods), University of Illinois

Perhaps I was reading things into it, Steve, but that first statement had me thinking your PhD was from Oxford.  I suppose "U of Illinois-educated PhD" just doesn't sound as good, does it.*  ;-)

* No offense to any U of Illinois alumni lurking on the list!  If it makes you feel any better, I'm a lowly U of Guelph and McMaster University educated BA & MSc, also in Psychology.  (That's the formal part of my education, at least.)

--
Bruce Weaver
bweaver@lakeheadu.ca
http://sites.google.com/a/lakeheadu.ca/bweaver/

"When all else fails, RTFM."

PLEASE NOTE THE FOLLOWING: 
1. My Hotmail account is not monitored regularly. To send me an e-mail, please use the address shown above.
2. The SPSSX Discussion forum on Nabble is no longer linked to the SPSSX-L listserv administered by UGA (https://listserv.uga.edu/).
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Re: range of standardized regression coefficients

statisticsdoc
Well, over the years,  I have read some good social research from Guelph.
Seasons Greetings
SteveB
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Bruce Weaver <[hidden email]>
Date:         Tue, 15 Dec 2009 15:21:20
To: <[hidden email]>
Subject:      Re: range of standardized regression coefficients

statisticsdoc wrote:
>
> Standardized coefficients have a range between -1 and 1 algebraically.
> Software packages sometimes generate coefficiebts slightly outside of this
> range (it can happen when the independent variables are extremely
> collinear).
> Hth
> Steve
> www.statisticsdoc.com
>

From that website:

"I am an Oxford-educated Ph.D. with over twenty years of  experience in
statistical consulting and research design."

Also from that website:

 Education       B.A. (First Class Honours), University of Oxford
                     Ph.D. (Psychology; Minor in Quantitative Methods),
University of Illinois

Perhaps I was reading things into it, Steve, but that first statement had me
thinking your PhD was from Oxford.  I suppose "U of Illinois-educated PhD"
just doesn't sound as good, does it.*  ;-)

* No offense to any U of Illinois alumni lurking on the list!  If it makes
you feel any better, I'm a lowly U of Guelph and McMaster University
educated BA & MSc, also in Psychology.  (That's the formal part of my
education, at least.)



-----
--
Bruce Weaver
[hidden email]
http://sites.google.com/a/lakeheadu.ca/bweaver/
"When all else fails, RTFM."

NOTE:  My Hotmail account is not monitored regularly.
To send me an e-mail, please use the address shown above.
--
View this message in context: http://old.nabble.com/range-of-standardized-regression-coefficients-tp26799741p26803514.html
Sent from the SPSSX Discussion mailing list archive at Nabble.com.

=====================
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Syntax to copy variable info from one file to another - is there a better way?

Mike Pritchard
In reply to this post by Bruce Weaver
I'm trying to copy the variable definitions (including name, type, label and
values) from one file to another.

I don't have all of the syntax that originally set up the source file. I
thought I could use APPLY DICTIONARY with each variable identified, but this
doesn't let me change the names, and won't let me change other attributes if
the type or width might cause problems.

So now I think I have to create syntax for each variable (including RENAME,
TYPE, etc.)  For all 250 variables.

Is there a better way?

I'm using SPSS V16.

Thanks
Mike

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Re: range of standardized regression coefficients

statisticsdoc
In reply to this post by Bruce Weaver
Bruce,
BTW I am going to change my website over the break.  I can see how the wording of the landing page could be confusing.  Thank you for bringing this to my attention.
Best,
Stephen Brand
(Illini)
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Bruce Weaver <[hidden email]>
Date:         Tue, 15 Dec 2009 15:21:20
To: <[hidden email]>
Subject:      Re: range of standardized regression coefficients

statisticsdoc wrote:
>
> Standardized coefficients have a range between -1 and 1 algebraically.
> Software packages sometimes generate coefficiebts slightly outside of this
> range (it can happen when the independent variables are extremely
> collinear).
> Hth
> Steve
> www.statisticsdoc.com
>

From that website:

"I am an Oxford-educated Ph.D. with over twenty years of  experience in
statistical consulting and research design."

Also from that website:

 Education       B.A. (First Class Honours), University of Oxford
                     Ph.D. (Psychology; Minor in Quantitative Methods),
University of Illinois

Perhaps I was reading things into it, Steve, but that first statement had me
thinking your PhD was from Oxford.  I suppose "U of Illinois-educated PhD"
just doesn't sound as good, does it.*  ;-)

* No offense to any U of Illinois alumni lurking on the list!  If it makes
you feel any better, I'm a lowly U of Guelph and McMaster University
educated BA & MSc, also in Psychology.  (That's the formal part of my
education, at least.)



-----
--
Bruce Weaver
[hidden email]
http://sites.google.com/a/lakeheadu.ca/bweaver/
"When all else fails, RTFM."

NOTE:  My Hotmail account is not monitored regularly.
To send me an e-mail, please use the address shown above.
--
View this message in context: http://old.nabble.com/range-of-standardized-regression-coefficients-tp26799741p26803514.html
Sent from the SPSSX Discussion mailing list archive at Nabble.com.

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