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.
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.
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.
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.
video is really helpful
You are amazing ! Thank you so much ! This video was really helpful!
thank you. this is easy to follow and is well presented...
thank you thank you thank you
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
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.
Thank you very much!
thank you! this was most helpful!
thank you, most helpful
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?
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.