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Shapiro-Wilk test is missing in SPSS

  • 1.  Shapiro-Wilk test is missing in SPSS

    Posted Thu December 10, 2020 03:20 PM

    Hello guys, I received some data set from my professor to run some tests in our course. When I selected normality tests as usual only Kolmogorov-Smirnov is showing, while Shapiro-Wilk is not. Could you tell me what it means?

    Cheers.






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  • 2.  RE: Shapiro-Wilk test is missing in SPSS

    Posted Thu December 10, 2020 04:47 PM

    To get both K-S and Shapiro-Wilk, check the "Normality plots with tests" box in the Plots subdialog box using Analyze > Descriptive Statistics > Explore or run the equivalent syntax

    EXAMINE VARIABLES=salary

    /PLOT NPPLOT.

    You can also get the Anderson-Darling test from the Simulation procedure






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  • 3.  RE: Shapiro-Wilk test is missing in SPSS

    Posted Fri December 11, 2020 02:06 AM

    https://www.spss-tutorials.com/spss-shapiro-wilk-test-for-normality/

    Try that and see if that works for you






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  • 4.  RE: Shapiro-Wilk test is missing in SPSS

    Posted Tue July 27, 2021 09:44 AM

    I am also facing the same problem, even after following the steps mentioned in the tutorial. Can you help?






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  • 5.  RE: Shapiro-Wilk test is missing in SPSS

    Posted Tue July 27, 2021 01:14 PM

    Read the next item. Shapiro-Wilks does not appear with the histogram in Frequencies - you would get it from Explore






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  • 6.  RE: Shapiro-Wilk test is missing in SPSS

    Posted Tue July 27, 2021 01:22 PM

    yes, i am following -- Analyze > Descriptive Statistics > Explore. "Plots > Normality plots with tests".






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  • 7.  RE: Shapiro-Wilk test is missing in SPSS

    Posted Tue July 27, 2021 01:35 PM

    You should see a table with the K-W and S-W tests displayed. I don't know of any reason that it would not appear. However, you can use the Simulation procedure to get the Anderson-Darling normality test.






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  • 8.  RE: Shapiro-Wilk test is missing in SPSS

    Posted Mon October 25, 2021 07:11 PM

    In case anyone may still be interested, I think the answer for this question lies in the sample size. Shapiro-Wilk works with sample sizes to a particular threshold above which SPSS does not calculate S-W. I have not determined that threshold, but for a dataset of 25,000 entries, only S-K was calculated. Hope this helps!






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  • 9.  RE: Shapiro-Wilk test is missing in SPSS

    Posted Wed January 17, 2024 01:43 PM
    Edited by Andres Parada Fri February 09, 2024 11:06 AM

    I have the same problem. Dataset of around 11000. S-W is not shown...