Interpreting moderation effect in Bayesian ANCOVA output
Hi all!
I'm using JASP for a Bayesian ANCOVA where I'm interested in a moderation effect, and am wondering how to interpret the output.
Here's what it looks like:
So my dependent variable is involvement ("T2_apq_subbetrokken") at posttest in an intervention study.
I have two conditions ("conditie": control/intervention) and want to know if there is a main effect of condition. Additionally I want to know if the effect of condition is moderated by PTSD severity at baseline ("T0_PCL_cati": low, medium, high).
I controlled for baseline level of involvement ("T0_apq_subbetrokken") by adding it as a covariate. To make interpretation easier, I added this to the null model, and checked "compare to null model".
What I'm wondering now is how to report the evidence specifically for the moderation effect. Looking at this blog https://www.cogsci.nl/blog/interpreting-bayesian-repeated-measures-in-jasp I would think the BF10 for the moderation effect is (0.342 / 0.191 = 1.791). But that would mean evidence for the moderation effect (albeit little) whereas both BF10 and BFincl show evidence against it. Is it wrong in this case to calculate the moderation effect BF10 like this? What should I report?
Any guidance would be much appreciated, thank you!