Computation of Cohen's d in post hoc tests for rmANOVA
Hi,
I was wondering what the formula for Cohen's d computation for post hoc tests for a repeated measurements ANOVA in JASP is? I am trying to replicate some output of an R script and the effect size values are wildly different.
Thanks,
Jas
Comments
Hi Jas,
I'll bring you in contact with the relevant team member. It would help if you had a few concrete examples to work with.
Cheers,
E.J.
Hi @jsmnstn ,
JASP uses the emmeans package in R - specifically, the effect_size function. The effect sizes are therefore based on the full specified model, so might differ from when you would conduct individual t-tests. If you want, you can post/email (j.b.vandoorn<at>uva.nl) your data, and I can take a closer look at how the results diverge.
Cheers
Johnny