Date: Tue, 21 Feb 2012 14:46:39 -0800
Reply-To: Bruce Weaver <bruce.weaver@hotmail.com>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: Bruce Weaver <bruce.weaver@hotmail.com>
Subject: Re: Simulation with SPSS
In-Reply-To: <131136.80522.qm@web45115.mail.sp1.yahoo.com>
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Please provide more information.
1. Is it a two-group (or more) pre-post design?
2. What kind of analysis are you intending to do? ANCOVA?
3. It's not clear what you mean when you say "the means of the tests are not
significant". If you are doing ANCOVA, do you mean the F-test for Group
should not be statistically significant?
4. What are the sample sizes? (The answer to this has a bearing on Q3,
assuming you did mean you want the F-test for group to be non-significant.)
5. What is the correlation between pre- and post-test scores?
The following links might be useful:
http://www.uvm.edu/~dhowell/StatPages/More_Stuff/CorrData.SPS
https://sites.google.com/a/lakeheadu.ca/bweaver/Home/statistics/files/Two%20correlated%20samples%20macro.sps?attredirects=0&d=1
HTH.
Humphrey Paulie wrote
>
> Dear colleagues,
> I want to simulate data with SPSS. I want to have a dataset on a test
> (pre-test and post-test) in such a way that the means of the tests are not
> significant. I don't know the exactly where and which icons are for
> simulation in SPSS. Do I need syntax for this? I'd be thankful if you give
> me the syntax if syntax is required.
> Regards
> Humphrey
>
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Bruce Weaver
bweaver@lakeheadu.ca
http://sites.google.com/a/lakeheadu.ca/bweaver/
"When all else fails, RTFM."
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