how to calculate SE in the post hoc of ANOVA

General help and assistance with jamovi. Bug reports can be made at our issues page: https://github.com/jamovi/jamovi/issues . (If you're unsure feel free to discuss it here)
Post Reply
Nat
Posts: 5
Joined: Sat Mar 20, 2021 7:16 am

how to calculate SE in the post hoc of ANOVA

Post by Nat »

Hi all, may I know how jamovi calculates SE in the post hoc test?

First of all, I know jamovi using pooled variance.

I run independent anova, and in this case, post hoc table can provide Cohen's d for each pair of comparison. (seems no such option for repeated-measures ANOVA)
I manually calculated standard deviation by using pooled variance, and I use each pair of mean difference, divided it by my manually calculated standard deviation, I can get the corresponding Cohen's d as showed in the post hoc table.
However, I can't get the SE by using my manually calculated standard deviation...

So can I know how jamovi calculates SE in the post hoc test?

Many thanks!
User avatar
jonathon
Posts: 2613
Joined: Fri Jan 27, 2017 10:04 am

Re: how to calculate SE in the post hoc of ANOVA

Post by jonathon »

hi,

all this is handled by the emmeans R package, so you'd need to look at how that does it.

cheers

jonathon
Nat
Posts: 5
Joined: Sat Mar 20, 2021 7:16 am

Re: how to calculate SE in the post hoc of ANOVA

Post by Nat »

I see, thanks Jonathon!
Post Reply