Testing the Assumption of Similar Distribution Shape for the Kruskal Wallis H Test using SPSS

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  • เผยแพร่เมื่อ 23 ส.ค. 2024

ความคิดเห็น • 5

  • @lucyperry8075
    @lucyperry8075 22 วันที่ผ่านมา

    Great video, super clear and thorough!

  • @joelaffoon6656
    @joelaffoon6656 6 ปีที่แล้ว +6

    what do you do if the 4th assumption is violated? As in, the shape of the distributions are different.

    • @kelvinyong7555
      @kelvinyong7555 6 ปีที่แล้ว +2

      You continue with the Kruskal Wallis test. However, when you interpret it later, you do no compare the medians of the independent variables, but instead only compare the rank means.

    • @Lozzalo66
      @Lozzalo66 6 ปีที่แล้ว

      I am in the same boat. I have violated assumption number 4, and doing a Kruskall-Wallis test it has retained the null hypotheses. Do i then need to interpret the mean ranks in my output? They don't quite make sense to me in their values.

  • @nicolastabchouri6985
    @nicolastabchouri6985 8 ปีที่แล้ว

    Thank you for this video. It was very helpful. I have one question though, how do you include the post test (mann whitney analysis between groups) in your box plots ? other statistics programs such as prism graph pad usually show an asterisk when there is a statistically significant difference found between two groups.