LISTSERV at the University of Georgia
Menubar Imagemap
Home Browse Manage Request Manuals Register
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (September 2005)Back to main SPSSX-L pageJoin or leave SPSSX-L (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Wed, 21 Sep 2005 12:35:19 -0500
Reply-To:     "Swank, Paul R" <Paul.R.Swank@uth.tmc.edu>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         "Swank, Paul R" <Paul.R.Swank@uth.tmc.edu>
Subject:      Re: Regresssion Plot in SPSS
Comments: To: Karl Koch <TheRanger@gmx.net>
Content-Type: text/plain; charset="iso-8859-1"

No, you are using the unstandardized intercept but the standardized regression coefficients. And because B may bias the weights for A and C, you need to run the regression again without B. The coefficients for Aand C will likely change. Then use the unstandardized coefficients for the regression equation.

Paul R. Swank, Ph.D. Professor, Developmental Pediatrics Director of Research, Center for Improving the Readiness of Children for Learning and Education (C.I.R.C.L.E.) Medical School UT Health Science Center at Houston

-----Original Message----- From: Karl Koch [mailto:TheRanger@gmx.net] Sent: Wednesday, September 21, 2005 10:36 AM To: Swank, Paul R; Mailinglist SPSS Subject: RE: Regresssion Plot in SPSS

Hello Paul,

Yes, I agree. Given the fact that now I only have two paramters left (=being significant), is this the correct equation (keeping in mind the table below)?

Y = 4.195 - 0.319 * A - 0.442 * C + e

What would be e in this case? I have standard erros for each parameter...

Kind Regards, Karl

---------------------------------------------------------------- Model Unstd. Coeff. Std. Coeff. t Sig. B Std. Error Beta ----------------------------------------------------------------- 1(Constant) 4.195 .070 58.971 .000 A -.779 .042 -.319 -18.278 .000 B -.028 .046 -.010 -.618 .534 C -1.635 .064 -.442 -25.354 .000 -----------------------------------------------------------------

> > Drop B from the model first as it could bias the parameters for A and C. >

-- 5 GB Mailbox, 50 FreeSMS http://www.gmx.net/de/go/promail +++ GMX - die erste Adresse für Mail, Message, More +++


Back to: Top of message | Previous page | Main SPSSX-L page