Assessment & Research

Evaluation of the utility of a discrete-trial functional analysis in early intervention classrooms.

Kodak et al. (2013) · Journal of applied behavior analysis 2013
★ The Verdict

Teachers can run a fast trial-based FA in class and still spot the true social function of problem behavior.

✓ Read this if BCBAs who support preschool or early elementary classrooms.
✗ Skip if Clinicians who only work in clinic or home settings with full analog FA rooms.

01Research in Context

01

What this study did

Kodak et al. (2013) asked teachers to run a short functional analysis inside preschool classrooms.

Each test used only a few short trials instead of long 10- or 15-minute sessions.

The goal was to see if staff could still find the social reason for problem behavior while saving time and space.

02

What they found

The quick trial-based FA gave a clear answer for every child.

Teachers could see if the behavior was fed by escape, attention, or something else.

The whole process took less room and time than the usual full FA.

03

How this fits with other research

Nesselrode et al. (2022) and Amador et al. (2024) both report that brief, trial-based FAs are now rising fast in schools.

Their reviews include the 2013 study and show the field is moving away from long analog sessions.

Saini et al. (2024) ran a 10-minute screening FA at the dinner table and also found escape to be the key.

Together these papers form a line of replications telling us that short formats still catch the right function.

04

Why it matters

You no longer need a separate room, a big block of time, or an extra clinician.

Train your classroom team to run a few quick trials between lessons.

If the brief FA points to a clear social cause, you can jump straight to teaching a replacement and stop problem behavior before it eats more learning time.

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→ Action — try this Monday

Pick one learner, pick one behavior, and run a five-trial attention test during morning circle—note if problem behavior jumps when attention stops.

02At a glance

Intervention
functional behavior assessment
Design
single case other
Finding
positive

03Original abstract

We evaluated a discrete-trial functional analysis implemented by regular classroom staff in a classroom setting. The results suggest that the discrete-trial functional analysis identified a social function for each participant and may require fewer staff than standard functional analysis procedures.

Journal of applied behavior analysis, 2013 · doi:10.1002/jaba.2