Hi, thanks for your question. The median is just the middle value when the values are ordered, so it may be that more than half of your values are 0. E.g., the median would be 0 in the following as the 4th value (i.e., the value in the middle) is 0: 0, 0, 0, 0, 1, 2, 3.
@@sitech-x3r The means might not provide a good reflection of the data if, e.g., you don't have normal distributions. However, you could consider comparing groups in terms of their mean ranks.
![Mann-Whitney U Test [Simply explained]](http://i.ytimg.com/vi/LcxB56PzylA/mqdefault.jpg)
Good job. Please redo all your statistics tutorials in Jamovi.
Thanks, I'm working on it!
hello, I would also like to ask what does a negative rank biserial correlation mean?
very helpful, thank you
for one of my tests, the medians are all reported as 0.00, do you know why this is so?
Hi, thanks for your question. The median is just the middle value when the values are ordered, so it may be that more than half of your values are 0. E.g., the median would be 0 in the following as the 4th value (i.e., the value in the middle) is 0: 0, 0, 0, 0, 1, 2, 3.
@ thank you for the clarification! In this case, would it be ok for me to compare means instead even though I’m using a non-parametric test
@@sitech-x3r The means might not provide a good reflection of the data if, e.g., you don't have normal distributions. However, you could consider comparing groups in terms of their mean ranks.
@ thank you!