i found how to do a mediation here : Displaying mediator analysis with LaTeX (TikZ-pfg maybe?)
but i don't manage to transform it to a moderation like this :
I'd like to keep the possibility to put the values like the mediation i showed.
Thank you very much.
Edit : i reused the given code from the link but didn't manage to make the arrow go between the variable a (time pressure) and b (home conflict). I thought about adding an invisible variable c between a and b so i could make a node from m to c but then it adds a square or a circle, i'd prefere a straight line. I then tried to mix it with this moderation model i found Moderator diagram Tikz but from what i understood it's using another package (i don't know if you can mix them) and you have to select (with edge label={coordinatepos=0.8}]) the position from which the link with the arrow will be, but if i do so it will also affect the starting point from a to m (no more from a.east). I went through the tikzpgfmanual.pdf and found some other way but i don't manage to mix it with the mediation template that i was talking about initially...
Thank you very much for your help