Thank you. English is my foreign language and I write my original papers directly in English without getting help. Your explanations here are more than helpful.
For the section on normality of distribution where you have cited schmider, zielger, danay..... I used the rule 2xSE for skewness and kurtosis. How do i cite that as i am not sure who came up with this rule.
Is there a way to know your name. I'm trying to cite this tutorial...not as a reference, but I'm using your structure for a paper and want to be completely/academically honest.
I calculated the T Test myself in excel, and I don't think I have a P=value. Is this correct? I have a calculated t, table t, a dof, and an alpha of 0.05. Where does the p come from?
How do you write the results for an independent samples t-test with multiple IV? Meaning, in this case, not only brain_volume but also brain_density and brain_width?
For the independent t-test, DF = N - 2; in this example, there were 17 observations in each group that were free to vary, before the mean gets "locked-in". So, 17 * 2 = 34.
They're not appropriate for the purposes of evaluating sufficient normality to carry out a t-test. With a large sample size, you'll almost always get a significant K-S and Shapiro Wilk result. That doesn't mean you can't get an accurate p-value from a t-test on those data, according to the simulation research I cited in the write-up.
Thank you. English is my foreign language and I write my original papers directly in English without getting help. Your explanations here are more than helpful.
You are amazing ! Thank you so much ! This video was really helpful!
video is really helpful
thank you. this is easy to follow and is well presented...
For the section on normality of distribution where you have cited schmider, zielger, danay.....
I used the rule 2xSE for skewness and kurtosis. How do i cite that as i am not sure who came up with this rule.
Is there a way to know your name. I'm trying to cite this tutorial...not as a reference, but I'm using your structure for a paper and want to be completely/academically honest.
use: how2stats
thank you! this was most helpful!
Thank you very much!
I calculated the T Test myself in excel, and I don't think I have a P=value. Is this correct? I have a calculated t, table t, a dof, and an alpha of 0.05. Where does the p come from?
How do you write the results for an independent samples t-test with multiple IV? Meaning, in this case, not only brain_volume but also brain_density and brain_width?
thank you, most helpful
thank you thank you thank you
where is the figure 1?
Do you have a write up video for Spearman Rho test?
hi, ignore my question pls, I have found how the 34 came. I just need more focus.
Hi, your videos are great as usual, I would like to ask how did you get the number F(34) in the Levene's F test?Thank you
Thanks! 34 = df for the independent samples t-test; so, the value of 34 is used for both the t-test and the Levene's test.
I was always under the impression df was N-1, which would give you 35 as your total sample is 36? Could you expand please?
For the independent t-test, DF = N - 2; in this example, there were 17 observations in each group that were free to vary, before the mean gets "locked-in". So, 17 * 2 = 34.
how2stats
Okay, thanks for the quick reply and helpful video ✌
essay due in 39 minutes. thx
I have not ever heard that K-S and Shapiro Wilk are not suitable to assess normality.
They're not appropriate for the purposes of evaluating sufficient normality to carry out a t-test. With a large sample size, you'll almost always get a significant K-S and Shapiro Wilk result. That doesn't mean you can't get an accurate p-value from a t-test on those data, according to the simulation research I cited in the write-up.