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    Tag Archives for: "normal_distribution"
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     Statistics – Spearman correlation
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    By Gunilla Rudander
    In Statistics & methods
    Posted 30. November 2018

    Statistics – Spearman correlation

    Hi, Pearson or Spearman’s correlation? The measurement level or normal distribution will lead you to the most correct correlation method. So if you have 2 scale variable that are both [...]

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     Statistics – Normality test
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    By Gunilla Rudander
    In Statistics & methods
    Posted 9. November 2018

    Statistics – Normality test

    Hi, I got a comment from a SPSS developer person that has a LOT of knowledge. He mentioned after my blog post in August about normality, that it’s also possible to make a test of the [...]

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     Statistics – understand independent t-test
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    By Gunilla Rudander
    In Statistics & methods
    Posted 19. October 2018

    Statistics – understand independent t-test

    In this example I will make a t-test to test if males and females mean values of salary differs significantly from each other. To do a t-test the salary should be normal distributed for male resp [...]

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     Statistics – nonparametric pairwise test
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    By Gunilla Rudander
    In Statistics & methods
    Posted 17. August 2018

    Statistics – nonparametric pairwise test

    Last Monday 13/8 I studied a difference between “stress after” and “stress before”, to see if this difference was normal or skewed distributed. The mean value of the [...]

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     SPSS Tips & Tricks #7 – Compute difference
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    By Gunilla Rudander
    In Tips & Tricks
    Posted 13. August 2018

    SPSS Tips & Tricks #7 – Compute difference

    Hi, this blog post will be a preparation for my blog post on Friday – about making a pairwise test. I have as you see a measurement of stress before and after a treatment period, for each [...]

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