When a child's tantrums, hitting or running off have taken over the household, the natural request is "make it stop." A good behavior therapist will answer with a question: what is the behavior doing for your child? That question is the whole point of a Functional Behavior Assessment, and it is why we never write a plan without one.
Behavior has a function
Challenging behavior is not random and it is not "bad." It works. Somewhere along the way, the behavior got your child something, and it keeps happening because it keeps working. Behavior analysts group those outcomes into four functions:
- Attention. The behavior brings a parent, teacher or sibling over, even if what arrives is a scolding.
- Escape or avoidance. The behavior ends or delays something the child does not want: homework, a bath, a transition, a noisy room.
- Access to tangibles. The behavior produces a thing or activity: the tablet, a snack, a longer turn.
- Automatic (sensory). The behavior feels good or reduces discomfort on its own, with no one else involved.
The same behavior can have different functions in different children, or in the same child in different settings. Hitting a sibling at home might be about attention; hitting a classmate might be about escaping a task. That is why a plan copied from another child, or from the internet, so often makes things worse.
What the assessment includes
An FBA is a process, not a single test. For a child in Miami-Dade it typically involves:
- Interview. The BCBA talks with you (and teachers if school is involved) about when the behavior happens, what comes before it, what happens after, and what your child's day looks like.
- Rating scales. Short questionnaires that help point toward likely functions.
- Direct observation. The BCBA watches your child at home, at school, or both, and records ABC data: the Antecedent (what happened right before), the Behavior, and the Consequence (what happened right after). Several observations across different times of day are usual.
- Data analysis. Patterns emerge: the behavior spikes when demands are placed, or only when a parent is on the phone, or right before meals.
- In some cases, a functional analysis. A more structured test in which conditions are changed deliberately to confirm the function. This is done carefully and only when observation is not enough.
The assessment is billed to insurance under the behavior-identification codes, and most Florida plans authorize it separately from ongoing treatment.
What you get at the end
The written product is a Behavior Intervention Plan (BIP, sometimes called a BASP). A useful one has four parts:
- A clear definition of each target behavior, specific enough that two people would count it the same way.
- Prevention strategies that change the situations that trigger the behavior: visual schedules, warnings before transitions, breaking tasks into steps, scheduled attention.
- Replacement skills that get the child the same outcome a better way: asking for a break, requesting help, using a communication card.
- Response strategies for what adults do when the behavior happens anyway, so that it stops working.
The plan also sets measurable goals and a data system so that in four to eight weeks you can see whether it is working, not just feel it.
What the FBA is not
It is not a diagnosis, and it does not require one, although insurance authorization often does. It is not a punishment plan. And it is not a one-time document: a plan that worked in March may need revision in September when school starts, which is why the BCBA keeps observing and adjusting.
If you are reading this because things at home are hard right now, the assessment is the first concrete step. Tell us what is happening and a bilingual BCBA will call you within one business day.