A descriptive assessment of trial‐based functional analysis research

Amador et al. (2024) read every trial-based functional analysis paper they could find. They wanted to see how easy these mini-FAs are to use and how well researchers report the steps.

The team pulled 32 studies that used TBFA in classrooms, homes, or clinics. They checked who took part, how long trials lasted, and whether later treatment matched the found function.

Across the 32 studies, trial-based FAs worked for kids with and without autism and could be run by teachers or parents. Agreement between observers stayed high, so the data looked trustworthy.

Still, most papers left out key details. Few said how long each trial lasted, how many trials were run, or what parents and teachers thought of the process.

Nesselrode et al. (2022) already showed that brief and trial-based FAs are on the rise in public schools. Amador’s 2024 zoom-in confirms the trend and adds that reporting quality hasn’t kept pace.

Stephens et al. (2025) looked at all kinds of FAs and also found almost no social-validity data. The two reviews together make a clear signal: we are doing the assessments, but we rarely ask users if they like them.

Griffith et al. (2020) proved that undergraduates can learn TBFA with a short self-instruction packet. Amador’s wider scan shows that once trained, people in everyday settings really do use the format, yet they seldom write down the fine details that Griffith taught.

If you run trial-based FAs, add a one-page checklist to your report: number of trials, minutes per trial, and a quick parent or teacher rating scale. These three extras take five minutes and satisfy every gap Amador, Nesselrode, and Stephens flag. Your next reader—whether a supervisor or an insurance reviewer—will know exactly what you did and why it matters.