I have never been shy about my love of the trial based functional analysis. I think it’s a great tool and a great way to quickly identify a function. This article applies this methodology to behavioral feeding and compares it to the more traditional extended FA. There findings are interesting, so I would check this one out!

Andersen, A. S., Hansen, B. A., & Peterson, K. M. (2022). An evaluation of trial-based functional analyses of inappropriate mealtime behavior. Journal of Applied Behavior Analysis, 55(1), 264-289. https://doi.org/10.1002/jaba.888