Posted by
Art Kendall on
Jul 26, 2012; 8:56pm
URL: http://spssx-discussion.165.s1.nabble.com/SPSS-Warnings-tp5714472p5714487.html
But would it not be worthwhile to see if there is a difference in the
changes from pre to post for males and females?
Also, if you did a two way anova instead of 2 one-way anova you would
have more power to detect differences.
(A t-test is an anova with 1 degree of freedom. )
Check and see if you had done a previous split file by manipulation and
violation.
If so,
split file off.
sort cases by gender.
split file by gender.
look at the error message from this example syntax.
open a new instance of SPSS.
paste the syntax below into a new syntax window.
run it.
data list list /id(f2) gender(f1) pre(f2) post(f2).
begin data
1 1 3 5
2 1 2 5
3 1 4 5
4 2 1 4
5 2 2 3
6 2 4 5
7 . 3 5
end data.
sort case by gender.
split file by gender.
t-test pairs = pre with post.
When I see your previous error message I wonder if you should have more
the one between subjects factor.
Art Kendall
Social Research Consultants
On 7/26/2012 3:04 PM, Gill, Ritu wrote:
>
> Hi,
>
> Yes I did a frequency and nothing is missing (it is one categorical
> variable, 1=male, 2=female, that I have split filed)
>
> I’m not sure what you mean by a 2 or 3 way anova. It is one
> categorical variable with gender being split filed, and DV is
> perceptions of driving behavior pre and post manipulation. I would
> like to see if there are sig diffs pre and post DV for women and men
> separately (not together)
>
> Ritu
>
> *From:*Art Kendall [mailto:
[hidden email]]
> *Sent:* July-26-12 2:58 PM
> *To:* Gill, Ritu
> *Cc:*
[hidden email]
> *Subject:* Re: [SPSSX-L] SPSS Warnings
>
> try a crosstab of the variables that are used to split the files.
> Are any of the values missing?
>
> also should you really by doing a 2 or 3 way anova with between
> factors whatever you are splitting the file on and a with factor for
> the repeats?
>
> Art Kendall
> Social Research Consultants
>
> On 7/26/2012 1:50 PM, StatsUser wrote:
>
> Yes, thank you.
>
>
>
> Here is the warning:
>
>
>
>
>
> Warnings
>
> No statistics are computed for a split file in the Paired Samples
>
> Correlations table. The split file is: Violation Manipulation =..
>
> No statistics are computed for a split file in the Paired Samples Test
>
> table. The split file is: Violation Manipulation =..
>
>
>
>
>
>
>
>
>
>
>
> --
>
> View this message in context:
http://spssx-discussion.1045642.n5.nabble.com/SPSS-Warnings-tp5714472p5714475.html>
> Sent from the SPSSX Discussion mailing list archive at Nabble.com.
>
>
>
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Art Kendall
Social Research Consultants