Weapons Effect Theory?

I'd honestly never thought of the phenomenon known as the weapons effect to be a theory in any meaningful sense of the term, but evidently there are folks who do. Not sure what a theoretical model would look like, or if it would be all that helpful, given that the evidence that would underpin the theory seems to be on shaky ground to begin with. If I have some spare time, would love to play around with this idea of what a weapons effect theory would look like and what would be needed to provide confirmatory and falsifiable evidence. Probably more me just sorting something out. Anyway, I guess we read something new every day.