Posted by
Björn Türoque on
Mar 08, 2007; 5:56pm
URL: http://spssx-discussion.165.s1.nabble.com/SPSS-warning-from-regression-tp1074315p1074316.html
Dude, the quickest way to figure out what is going on is to load all the
variables you want to look at into a bivariate correlation. Under Analyze
--> Correlate --> Bivariate. If you see a box full of periods, your
regression won't work, the box full of periods means that one question
was answered by only part of the respondents and the other question
was answered by a different part of the respondents. This usually happens if
there is a skip pattern in your data or if the same questions are not
answered by everyone in the survey.
Multiple regression needs a certain number of cases that have values in all
the variables you load into the equation. These guys are right in that you
need to understand how your data is structured before running this analysis,
it helps to run prior analysis just to see if there are relationships
between all of your independent variables and your dependent variables
before doing a regression.
Don
On 3/5/07, Yifan Lu <
[hidden email]> wrote:
>
> Dear list,
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> I am running multiple regression, but SPSS keeps telling me:
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> Warnings
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> There are no valid cases for models with dependent variable alldays.
> Statistics cannot be computed.
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> No valid cases found. Equation-building skipped.
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> I checked the data and it seems all right. I also ran descriptives and
> the results come out right. Anybody also had such problem before? Any
> suggestions to fix the problem? Thank you!
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> Regards,
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> Yifan Lu
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