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Date:         Tue, 27 Sep 2005 17:17:05 +0200
Reply-To:     Marta García-Granero
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Marta García-Granero
Organization: Asesoría Bioestadística
Subject:      Re: Techincal questions about SPSS
In-Reply-To:  <>
Content-Type: text/plain; charset=ISO-8859-1


Although I still use SPSS 12, to my knowledge, these questions are not SPSS 13 specific.

aGC> I have some questions about SPPS 13.0, not using scripts but using the aGC> interactive menu and panels.

You loose a lot if you are not willing to use some syntax (different from scripting, BTW) now and then. I know it can look fearful at the start, but it's worth the effort, I assure you.

aGC> I would like to know how to specify a design with a nested factor in the aGC> UNIVARIATE ANOVA procedure. How to use the WITHIN option clicking the aGC> mouse?

That's ONE of the things you miss if you don't use syntax. With UNIANOVA, nesting is specified in a model only by syntax. Try MIXED procedure instead, nesting is available thru point and click. As I see we speak the same language (you are from Costa Rica and I'm from Spain), I could send you a mail with some instructions using the Spanish version of SPSS.

aGC> I need to specify coefficients for specific contrasts in the GLM aGC> procedure as in the One-Way ANOVA. In GLM, I can't add any coefficient and aGC> it is only possible to contrast differences among a reference category aGC> (last or first).

Syntax again...

aGC> How can I specify the split plot design, making at the same time a post aGC> hoc test (Tukey test for example), knowing that the errors are different.

Syntax again... I have an example I could send to you. Unfortunately, using UNIANOVA in split-plot designs will lead to wrong results in post-hoc tests (the residual error term is always used, even if the post-hoc test is needed for the plot factor, not the sub-plot factor). I haven't found yet a way of using MIXED for this complex experimental design, perhaps I'll pest those poor guys from SPSS who still dare to answer questions here ;)

aGC> If you can not answer me these questions, please to indicate me who could aGC> answer them.

Mmmm... that was a bit harsh, don't U think so?

-- Saludos, Marta García-Granero University of Navarra SPAIN

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