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  • 1.  Significance level - Logistic regression

    Posted Tue February 15, 2022 02:31 PM
    Hello everyone.

    I have some trouble interpreting the significance level in logistic regression. I'm not an expert at all, so I'm sorry if anything I say sounds completely meaningless.

    When I run a binary logistic regression analysis for one binary dependent variable and two or more independent variables, I notice that the significance level is different than the one I obtain when I run a single analysis (with the same dependent variable) for each independent variable. Why is it so?

    In the two attached pictures, the data set and the dependent variable are the same. ART_DET and ISOLATO are the two binary independent variables.
    The first picture contains the results for the ART_DET variable alone, while the second picture contains the results for both ART_DET and ISOLATO. I don't understand why the significance level for the ART_DET variable changes. Is it normal? 



     


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    Domenico Franceschelli
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    #SPSSStatistics


  • 2.  RE: Significance level - Logistic regression

    Posted Tue February 15, 2022 02:56 PM
    Hi, Domenico. I'm not an expert myself, but I do know this much: Because neither ART_DET(1) coefficient is statistically significant, they should not be interpreted at all. It looks like ISOLATO is the variable to focus on.

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    Rick Marcantonio
    Quality Assurance
    IBM
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    Original Message


  • 3.  RE: Significance level - Logistic regression

    Posted Tue February 15, 2022 03:41 PM
    Thank you!

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    Domenico Franceschelli
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    Original Message


  • 4.  RE: Significance level - Logistic regression

    Posted Tue February 15, 2022 03:07 PM
    You posted this same question on Reddit, where it was answered.  You are showing a very basic misunderstanding of what regression or logistic regression is.  I would strongly suggest that you go back to your textbook or another source and study this.

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    Original Message


  • 5.  RE: Significance level - Logistic regression

    Posted Tue February 15, 2022 03:40 PM
    I will. Thank you for your answer.

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    Domenico Franceschelli
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    Original Message


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