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  • 1.  Descriptives in Logistic Regression

    Posted Wed December 06, 2023 11:23 AM

    I'm running two separate LR's on my data set. I split up the analysis because two of my variables have high missingness, and I wanted to see what's going on in the greatest number of cases I can include (think 4800 rather than 1960).

    When I add my variables with high missingness into a second model, the variables that are significant are much different than the ones that are significant in the original model.

    It would help if I could get descriptives and frequencies for the data that is retained in the first model, and compare those to the data in the second model. Is there a way to ask SPSS to generate freq and descriptives for the cases included in a given logistic regression model?

    Thanks,

    Amy



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    Amy Anderson
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  • 2.  RE: Descriptives in Logistic Regression

    Posted Wed December 06, 2023 12:05 PM
    If you are using the binary logistic procedure (LOGISTIC REGRESSION), save the predicted values.  Then set your SELECT IF or FILTER to the cases where the predicted value is not missing and run the regular descriptive procedures.

    You could also do logistic regression using the Generalized Logistic procedure.  It provides descriptives for the variables used.

    You might also want to look at the missing value analysis available via Multiple Imputation > Analyze Patterns if you have access to that procedure.

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